<?xml version="1.0" encoding="UTF-8"?>
<!-- generator="FeedCreator 1.8" -->
<?xml-stylesheet href="https://beta.mathcity.org/lib/exe/css.php?s=feed" type="text/css"?>
<rdf:RDF
    xmlns="http://purl.org/rss/1.0/"
    xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
    xmlns:slash="http://purl.org/rss/1.0/modules/slash/"
    xmlns:dc="http://purl.org/dc/elements/1.1/">
    <channel rdf:about="https://beta.mathcity.org/feed.php">
        <title>MathCity.org Beta</title>
        <description>This is beta site.</description>
        <link>https://beta.mathcity.org/</link>
        <image rdf:resource="https://beta.mathcity.org/_media/logo.png" />
       <dc:date>2026-06-07T10:25:33+00:00</dc:date>
        <items>
            <rdf:Seq>
                <rdf:li rdf:resource="https://beta.mathcity.org/fsc-part1-ptb/mcq-bank/ch01?rev=1737476037&amp;do=diff"/>
                <rdf:li rdf:resource="https://beta.mathcity.org/fsc-part1-ptb/sol/ch01/ex1-1?rev=1737476037&amp;do=diff"/>
                <rdf:li rdf:resource="https://beta.mathcity.org/fsc-part1-ptb/mcq-bank/ch04?rev=1737476037&amp;do=diff"/>
                <rdf:li rdf:resource="https://beta.mathcity.org/fsc-part1-ptb/sol/ch01/ex1-2?rev=1737476037&amp;do=diff"/>
                <rdf:li rdf:resource="https://beta.mathcity.org/fsc-part1-ptb/mcq-bank/ch02?rev=1737476037&amp;do=diff"/>
                <rdf:li rdf:resource="https://beta.mathcity.org/fsc-part1-ptb/definitions?rev=1737476037&amp;do=diff"/>
                <rdf:li rdf:resource="https://beta.mathcity.org/fsc-part1-ptb/important-questions/ch07-permutation-combination-and-probablity?rev=1737476037&amp;do=diff"/>
                <rdf:li rdf:resource="https://beta.mathcity.org/fsc-part1-ptb/important-questions/ch10-trigonometric-identities?rev=1737476037&amp;do=diff"/>
                <rdf:li rdf:resource="https://beta.mathcity.org/fsc-part1-ptb/important-questions/ch02-functions-and-groups?rev=1737476037&amp;do=diff"/>
                <rdf:li rdf:resource="https://beta.mathcity.org/fsc-part1-ptb/important-questions/ch04-quadratic-equations?rev=1737476037&amp;do=diff"/>
                <rdf:li rdf:resource="https://beta.mathcity.org/fsc-part1-ptb/important-questions/ch08-mathematical-induction-and-binomial-theorem?rev=1737476037&amp;do=diff"/>
                <rdf:li rdf:resource="https://beta.mathcity.org/fsc-part1-ptb/sol/ch02/ex2-8?rev=1737476037&amp;do=diff"/>
            </rdf:Seq>
        </items>
    </channel>
    <image rdf:about="https://beta.mathcity.org/_media/logo.png">
        <title>MathCity.org Beta</title>
        <link>https://beta.mathcity.org/</link>
        <url>https://beta.mathcity.org/_media/logo.png</url>
    </image>
    <item rdf:about="https://beta.mathcity.org/fsc-part1-ptb/mcq-bank/ch01?rev=1737476037&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2025-01-21T16:13:57+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>MCQs: Ch 01 Number Systems</title>
        <link>https://beta.mathcity.org/fsc-part1-ptb/mcq-bank/ch01?rev=1737476037&amp;do=diff</link>
        <description>MCQs: Ch 01 Number Systems

High quality MCQs of Chapter 01 Number System of Text Book of Algebra and Trigonometry Class XI (Mathematics FSc Part 1 or HSSC-I), Punjab Text Book Board, Lahore. The answers are given at the end of the page.

MCQs

	*  If $*$$A$$a, b \in A$$a+b \in A$$a-b \in A$$a \times b \in A$$a * b \in A$$z=(1,3)$$z^{-1}= $$(\displaystyle{\frac{1}{10}},\displaystyle{\frac{3}{10}})$$(-\displaystyle{\frac{1}{10}},\displaystyle{\frac{3}{10}})$$(\displaystyle{\frac{1}{10}},-\display…</description>
    </item>
    <item rdf:about="https://beta.mathcity.org/fsc-part1-ptb/sol/ch01/ex1-1?rev=1737476037&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2025-01-21T16:13:57+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>Exercise 1.1 (Solutions)</title>
        <link>https://beta.mathcity.org/fsc-part1-ptb/sol/ch01/ex1-1?rev=1737476037&amp;do=diff</link>
        <description>Exercise 1.1 (Solutions)

&lt;lead&gt;Notes (Solutions) of Exercise 1.1: Textbook of Algebra and Trigonometry Class XI (Mathematics FSc Part 1 or HSSC-I), Punjab Textbook Board (PTB) Lahore.&lt;/lead&gt; 
The main topics of this exercise are properties of real numbers, binary operation, addition and multiplication law, properties of equality, properties of inequality (order properties), field, rule of fractions. These notes are based on the new Student Learning Outcomes (SLOs). Version: 4.0, Available at Ma…</description>
    </item>
    <item rdf:about="https://beta.mathcity.org/fsc-part1-ptb/mcq-bank/ch04?rev=1737476037&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2025-01-21T16:13:57+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>MCQs: Ch 04 Quadratic Equations</title>
        <link>https://beta.mathcity.org/fsc-part1-ptb/mcq-bank/ch04?rev=1737476037&amp;do=diff</link>
        <description>MCQs: Ch 04 Quadratic Equations

High quality MCQs of Chapter 01 Number System of Text Book of Algebra and Trigonometry Class XI (Mathematics FSc Part 1 or HSSC-I), Punjab Text Book Board, Lahore. The answers are given at the end of the page.

MCQs

$ax^2+bx+c=0$$ax^2+bx+c=0$$b \neq 0$$c \neq 0$$a \neq 0$$x$$ax^2+bx+c$$ax^2+bx+c=0$$\{a,b\}$$ax^2+bx+c=0$$a\neq 0$$x= \frac{b \pm \sqrt{b^2-4ac}}{a}$$x= \frac{-b \pm \sqrt{b^2+4ac}}{2a}$$x= \frac{-b \pm \sqrt{4ac-b^2}}{2a}$$x= \frac{-b \pm \sqrt{b^2-…</description>
    </item>
    <item rdf:about="https://beta.mathcity.org/fsc-part1-ptb/sol/ch01/ex1-2?rev=1737476037&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2025-01-21T16:13:57+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>Exercise 1.2 (Solutions)</title>
        <link>https://beta.mathcity.org/fsc-part1-ptb/sol/ch01/ex1-2?rev=1737476037&amp;do=diff</link>
        <description>Exercise 1.2 (Solutions)

&lt;lead&gt;Notes (Solutions) of Exercise 1.2: Textbook of Algebra and Trigonometry Class XI (Mathematics FSc Part 1 or HSSC-I), Punjab Textbook Board (PTB) Lahore.&lt;/lead&gt; 
The main topics of this exercise are complex numbers, real part and imaginary part of complex numbers, properties of the fundamental operation on complex numbers, complex number as ordered pair of real numbers and special subset of complex numbers. These notes are based on the new Student Learning Outcomes…</description>
    </item>
    <item rdf:about="https://beta.mathcity.org/fsc-part1-ptb/mcq-bank/ch02?rev=1737476037&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2025-01-21T16:13:57+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>MCQs: Ch 02 Sets, Functions and Groups</title>
        <link>https://beta.mathcity.org/fsc-part1-ptb/mcq-bank/ch02?rev=1737476037&amp;do=diff</link>
        <description>MCQs: Ch 02 Sets, Functions and Groups

High quality MCQs of Chapter 02 Sets, Functions and Groups of Text Book of Algebra and Trigonometry Class XI (Mathematics FSc Part 1 or HSSC-I), Punjab Text Book Board, Lahore. The answers are given at the end of the page.$\forall$$\wedge$$&lt;$$\in$$A$$B$$A\cap B=\phi$$A=B$$B\subseteq A$$A \subseteq B$$A$$B$$A-B \neq \phi$$A=B$$A \subseteq B$$B\subseteq A$$A$$B$$A\cap B=A$$B \subseteq A$$A\cap B=\phi$$A\subseteq B$$B\subseteq A$$A=\phi$$A \cup B=A$$A \cap B=…</description>
    </item>
    <item rdf:about="https://beta.mathcity.org/fsc-part1-ptb/definitions?rev=1737476037&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2025-01-21T16:13:57+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>Definitions: FSc Part 1 (Mathematics): PTB</title>
        <link>https://beta.mathcity.org/fsc-part1-ptb/definitions?rev=1737476037&amp;do=diff</link>
        <description>Definitions: FSc Part 1 (Mathematics): PTB

On this page, all the definitions of “Textbook of Algebra and Trigonometry Class XI, published by Punjab Textbook Board (PTB) Lahore, Pakistan are given. We are very thankful to Muhammad Waqas Sulaiman for his valuable contribution.$\frac{p}{q}$$p,q \in \mathbb{Z}$$q\neq 0$$\frac{p}{q}$$p,q \in \mathbb{Z}$$q\neq 0$$\mathbb{R}$$0.3333....,21.134134$$\pi = 3.1415...$$\divideontimes$$z=x+iy$$x,y \in \mathbb{R}, i = \sqrt{-1}$$x$$y$$z$$2, 3+\sqrt{3}i, \fra…</description>
    </item>
    <item rdf:about="https://beta.mathcity.org/fsc-part1-ptb/important-questions/ch07-permutation-combination-and-probablity?rev=1737476037&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2025-01-21T16:13:57+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>Ch 07: Permutation, Combination and Probability</title>
        <link>https://beta.mathcity.org/fsc-part1-ptb/important-questions/ch07-permutation-combination-and-probablity?rev=1737476037&amp;do=diff</link>
        <description>Ch 07: Permutation, Combination and Probability

&lt;list-group&gt;

	*  Find $n$ when ${^nC_{12}}={^nC_6}$ --- BISE Gujranwala(2015)
	*  Evaluate  ${^{20}C_{17}}$ without calculator --- BISE Gujranwala(2015)
	*  How many $6-digit$ numbers can be formed from the digits $2,2,3,3,4,4$? How many of them with lie between $400,000$$430,000$$``PLANE&quot;$$^nC_4=^nC_{n-r}$$6-digits$$n^3-n$$6$$n=2,3$$n$$^nP_2=30$$6-dided$$n$$^nC_{12}=^nC_6$$^{n-1}C_r+^{n-1}C_{r-1}=^nC_r$$\frac{a_5}{a_3}=\frac{4}{9}$$a_2=\frac{4}{…</description>
    </item>
    <item rdf:about="https://beta.mathcity.org/fsc-part1-ptb/important-questions/ch10-trigonometric-identities?rev=1737476037&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2025-01-21T16:13:57+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>Ch 10: Trigonometric Identities</title>
        <link>https://beta.mathcity.org/fsc-part1-ptb/important-questions/ch10-trigonometric-identities?rev=1737476037&amp;do=diff</link>
        <description>Ch 10: Trigonometric Identities

&lt;list-group&gt;

	*  Prove that (without calculator) $\sin 10^{\circ}\sin 30^{\circ}\sin 50^{\circ}\sin 70^{\circ}=\frac{1}{16}$ ---  BISE Gujrawala(2015)
	*  Prove that $\sin(\frac{\pi}{4}-\theta)\sin(\frac{\pi}{4}+\theta)=\frac{1}{2}\csc^2\theta$ ---  BISE Gujrawala(2017)
	*  Prove that $\sin(\theta+\frac{\pi}{6})=\cos\theta$ ---  BISE Gujrawala(2017)
	*  Using without table or calculator find $tan(1110^{\circ})$ ---  BISE Sargodha(2015), BISE Gujrawala(2017)$sin(…</description>
    </item>
    <item rdf:about="https://beta.mathcity.org/fsc-part1-ptb/important-questions/ch02-functions-and-groups?rev=1737476037&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2025-01-21T16:13:57+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>Ch 02: Functions and Groups</title>
        <link>https://beta.mathcity.org/fsc-part1-ptb/important-questions/ch02-functions-and-groups?rev=1737476037&amp;do=diff</link>
        <description>Ch 02: Functions and Groups

The important questions of Chapter 2 of Textbook of Algebra and Trigonometry Class XI is published by Punjab Textbook Board (PTB) Lahore, Pakistan has been given on this page. These questions are selected from old papers.
&lt;list-group&gt;$(2,4)$$\{a,\{b,c\}\}$$A-B=A \cup B^c$$p \longrightarrow q$$\{(1,2),(2,5),(3,7),(4,9),(5,11)\}$$\{a,b \}$$\{\{a,b\}\}$$~(p \longrightarrow q) \longrightarrow p$$A \cap(B \cup C)=(A \cap B)\cup(A \cap C)$$A=\{1,2,3,4\}$$B=\{3,4,5,6,7,8\}$…</description>
    </item>
    <item rdf:about="https://beta.mathcity.org/fsc-part1-ptb/important-questions/ch04-quadratic-equations?rev=1737476037&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2025-01-21T16:13:57+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>Ch 04: Quadratic Equations</title>
        <link>https://beta.mathcity.org/fsc-part1-ptb/important-questions/ch04-quadratic-equations?rev=1737476037&amp;do=diff</link>
        <description>Ch 04: Quadratic Equations

&lt;list-group&gt;

	*  Reduce $x^{-2}-10=3x^{-1}$ to quadratic form  --- BISE Gujrawala(2015)
	*  Show that $x^3-y^3=(x-y)(x-wy)(x-w^2y)$ --- BISE Gujrawala(2015)
	*  If $n$ is an odd integer, is $(x+a)$ factor of $(x^n+a^n)$?   --- BISE Gujrawala(2015)
	*  If the roots of $px^2+qx+q=0$ are $\alpha$, $\beta$,then prove that $$\sqrt {\frac{\alpha}{\beta}}+\sqrt {\frac{\beta}{\alpha}}+\sqrt{\frac{p}{q}}=0$$$${\begin{array}{c} x^2-5xy+6y^2=0\\x^2+y^2=45\end{array}}$$$4x^2+7x-…</description>
    </item>
    <item rdf:about="https://beta.mathcity.org/fsc-part1-ptb/important-questions/ch08-mathematical-induction-and-binomial-theorem?rev=1737476037&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2025-01-21T16:13:57+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>Ch 08: Mathematical Induction and Binomial Theorem</title>
        <link>https://beta.mathcity.org/fsc-part1-ptb/important-questions/ch08-mathematical-induction-and-binomial-theorem?rev=1737476037&amp;do=diff</link>
        <description>Ch 08: Mathematical Induction and Binomial Theorem

&lt;list-group&gt;

	*  Using binomial theorem,expand $\left(\frac{x}{2}-\frac{2}{x^2}\right)$ ---  BISE Gujranwala(2015)
	*  Find the $6$th term in the expansion of $\left( x^2-\frac{3}{2x}\right)$ ---  BISE Gujranwala(2015)
	*  Expand $\left( 8-2x\right)^{-1}$ up to two terms. ---  BISE Gujranwala(2015)$1+\frac{1}{4}+\frac{1.3}{4.8}+\frac{1.3.5}{4.8.12},...=\sqrt{2}$$(1.03)^{\frac{1}{3}}$$(a+x)$$n$$x$$(x-\frac{2}{x})^{10}$$n^3-n$$6$$n=2,3$$4^n&gt;3^n+…</description>
    </item>
    <item rdf:about="https://beta.mathcity.org/fsc-part1-ptb/sol/ch02/ex2-8?rev=1737476037&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2025-01-21T16:13:57+00:00</dc:date>
        <dc:creator>Anonymous (anonymous@undisclosed.example.com)</dc:creator>
        <title>Exercise 2.8 (Solutions)</title>
        <link>https://beta.mathcity.org/fsc-part1-ptb/sol/ch02/ex2-8?rev=1737476037&amp;do=diff</link>
        <description>Exercise 2.8 (Solutions)

&lt;lead&gt;Notes (Solutions) of Exercise 2.8: Textbook of Algebra and Trigonometry Class XI (Mathematics FSc Part 1 or HSSC-I), Punjab Textbook Board (PTB) Lahore.&lt;/lead&gt; 
The main topic of this exercise are binary operation, semi-group, monoid, groups and abelian groups. These notes are based on the new Student Learning Outcomes (SLOs). Version: 4.1, Available at MathCity.org $\oplus$$G=\{0,1\}$\[
\begin{array}{|c|c|c|}
\hline
  \oplus &amp; 0 &amp; 1 \\ 
\hline
   0 &amp; 1 &amp; 1 \\
\hl…</description>
    </item>
</rdf:RDF>
