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MCQs: Ch 04 Quadratic Equations

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ormula for $ax^2+bx+c=0$, $a\neq 0$ is - $x= \frac{b \pm \sqrt{b^2-4ac}}{a}$ - $x= \frac{-b \pm \sqrt{b^2+4ac}}{2a}$ - $x= \frac{-b \pm \sqrt{4ac-b^2}}{2a}$ - $x= \frac{-b \pm \sqrt{b^2-4ac}}{2a}$ - A quadratic equation which

MCQs: Ch 01 Number Systems

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$z=(1,3)$ then $z^{-1}= $ - $(\displaystyle{\frac{1}{10}},\displaystyle{\frac{3}{10}})$ - $(-\displaystyle{\frac{1}{10}},\displaystyle{\frac{3}{10}})$ - $(\displaystyle{\frac{1}{10}},-\displaystyle{\frac{3}{10}})

MCQs: Ch 02 Sets, Functions and Groups

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- $\{x/x \in \bigcup and x\neq A\}$ - If $\frac{A}{B}=A$ then - $A\cap =\phi$ - $A\cap B