<?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>2026-06-07T15:53:48+00:00</dc:date>
        <items>
            <rdf:Seq>
                <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/sol/ch02/ex2-8?rev=1737476037&amp;do=diff"/>
                <rdf:li rdf:resource="https://beta.mathcity.org/fsc-part1-ptb/important-questions/ch03-matrices-and-determinants?rev=1737476037&amp;do=diff"/>
                <rdf:li rdf:resource="https://beta.mathcity.org/fsc-part1-ptb/trigonometric-formulas?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/definitions?rev=1737476037&amp;do=diff"/>
                <rdf:li rdf:resource="https://beta.mathcity.org/fsc-part1-ptb/solution-and-area-of-oblique-triangle?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/definitions-aurang-zaib?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/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/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>
    <item rdf:about="https://beta.mathcity.org/fsc-part1-ptb/important-questions/ch03-matrices-and-determinants?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 03: Matrices and Determinants</title>
        <link>https://beta.mathcity.org/fsc-part1-ptb/important-questions/ch03-matrices-and-determinants?rev=1737476037&amp;do=diff</link>
        <description>Ch 03: Matrices and Determinants

&lt;list-group&gt;

	*  Fin $x$ and $y$ if $ \left[ {\begin{array}{c} x+3&amp;1\\ -3&amp; 3y-4 \end{array}} \right]= \left[ {\begin{array}{c} 2&amp;1\\ -3&amp;2 \end{array}} \right]$   ---  BISE Gujrawala(2015)
	*  Solve for matrix $A$ if $\left[ {\begin{array}{c}4&amp;3\\ 2&amp;2 \end{array}} \right]A-\left[ {\begin{array}{c} 2&amp;3\\ -1&amp;-2 \end{array}} \right]= \left[ {\begin{array}{c} -1&amp;-4\\ 3&amp;6 \end{array}} \right]$    ---  BISE Gujrawala(2015)
	*  Prove without expansion $ \left[ {\begin{…</description>
    </item>
    <item rdf:about="https://beta.mathcity.org/fsc-part1-ptb/trigonometric-formulas?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>Trigonometric Formulas</title>
        <link>https://beta.mathcity.org/fsc-part1-ptb/trigonometric-formulas?rev=1737476037&amp;do=diff</link>
        <description>Trigonometric Formulas

These are the common formulas used in Chapter 9 to 14 of Textbook of Algebra and Trigonometry Class XI, Punjab Textbook Board Lahore. This handout is very helpful to remember the formulas. All these formulas are given for real valued and defined trigonometric functions. A PDF file can be downloaded for high quality printing and a word file is also given if you wish to modify the contents or credit as you need.
&lt;panel&gt;
${{\sin }^{2}}\theta +{{\cos }^{2}}\theta =1$$1+{{\tan…</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/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/solution-and-area-of-oblique-triangle?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>Solution and Area of Oblique Triangle</title>
        <link>https://beta.mathcity.org/fsc-part1-ptb/solution-and-area-of-oblique-triangle?rev=1737476037&amp;do=diff</link>
        <description>Solution and Area of Oblique Triangle

These are the common formulas used in Chapter 12 of Textbook of Algebra and Trigonometry Class XI, Punjab Textbook Board Lahore. This handout is very helpful to remember the formulas. All these formulas are given for real valued and defined trigonometric functions. A PDF file can be downloaded for high quality printing and a word file is also given if you wish to modify the contents or credit as you need.
&lt;panel title=$a^2=b^2+c^2-2bc\cos \alpha$$b^2=c^2+a^…</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/definitions-aurang-zaib?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 by Aurang Zaib</title>
        <link>https://beta.mathcity.org/fsc-part1-ptb/definitions-aurang-zaib?rev=1737476037&amp;do=diff</link>
        <description>Definitions: FSc Part 1 (Mathematics): PTB by Aurang Zaib

Definitions from Textbook of Algebra and Trigonometry Class XI, published by Punjab Textbook Board (PTB) Lahore, Pakistan. We are very thankful to Aurang Zaib for his valuable contribution.

Chapter 01: Number System
\( \dfrac{p}{q} \)\( p, q \in \mathbb{Z} \)\( q \neq 0 \)\( \dfrac{3}{4} \)\( \dfrac{7}{2} \)\( \sqrt{2} \)\( \pi \)\( \mathbb{R} \)\( 0.25 \)\( 3.75 \)\( 0.3333... \)\( 1.234234... \)\( \pi \)\( 3.1415... \)\( \sqrt{2} \)\(…</description>
    </item>
</rdf:RDF>
