MCQ
The function which is neither decreasing nor increasing in $\left( {{\pi \over 2},{{3\pi } \over 2}} \right)$ is
- ✓$cosec\, x$
- B$\tan x$
- C${x^2}$
- D$|x - 1|$

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$ + sin^{-1} \left\{ \,\frac{1}{{\sqrt {13} }}(2\cos x + 3\sin x)\,\,\,\right\} $ w.r.t. at $x = \frac{3}{4}$ is :
A and B are mutually exclusive
$\text{P}(\text{A}'\text{B}')=\big[1-\text{P}(\text{A})\big]\big[1-\text{P}(\text{B})\big]$