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Quiz Discussion

Evaluated : ${{9\left| {3 - 5} \right| - 5\left| 4 \right| \div 10} \over { - 3\left( 5 \right) - 2 \times 4 \div 2}}$

Course Name: Quantitative Aptitude

1]
9/10
2]
-8/17
3]
-16/19
4]
4/7

Solution

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2 Discuss	$\left( {x + \frac{1}{x}} \right)\left( {x - \frac{1}{x}} \right)\left( {{x^2} + \frac{1}{{{x^2}}} - 1} \right)\left( {{x^2} + \frac{1}{{{x^2}}} + 1} \right)$ is equal to ? 1] ${x^6} - \frac{1}{{{x^6}}}$ 2] ${x^8} - \frac{1}{{{x^8}}}$ 3] ${x^6} + \frac{1}{{{x^6}}}$ 4] ${x^8} + \frac{1}{{{x^8}}}$ Solution
3 Discuss	If $\frac{{x + 1}}{{x - 1}}{ \text{ = }}\frac{a}{b}$ and $\frac{{1 - y}}{{1 + y}}{ \text{ = }}\frac{b}{a}{ \text{,}}$ then the value of $\frac{{x - y}}{{1 + xy}}$ = ? 1] $\frac{{2ab}}{{{a^2} - {b^2}}}$ 2] $\frac{{{a^2} - {b^2}}}{{2ab}}$ 3] $\frac{{{a^2} + {b^2}}}{{2ab}}$ 4] $\frac{{{a^2} - {b^2}}}{{ab}}$ Solution
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7 Discuss	Find the value of * in the following. ${ \text{1}}\frac{2}{3} \div \frac{2}{7} \times \frac{*}{7} = 1\frac{1}{4} \times \frac{2}{3} \div \frac{1}{6}$ 1] 0.006 2] 1/6 3] 0.6 4] 6 Solution
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