MCQ
If $\frac{\pi }{2} \le x \le \frac{{3\pi }}{2},$ then ${\sin ^{ - 1}}(\sin x)$ is equal to
  • A
    $x$
  • B
    $ - x$
  • C
    $\pi + x$
  • $\pi - x$

Answer

Correct option: D.
$\pi - x$
d
(d) We have $\frac{\pi }{2} \le x \le \frac{{3\pi }}{2}$

$ \Rightarrow \,\,\frac{{ - \pi }}{2} \le x - \pi \le \frac{\pi }{2}\,\, \Rightarrow \,\,\frac{{ - \pi }}{2} \le \pi - x \le \frac{\pi }{2}$

$ \Rightarrow \,\,{\sin ^{ - 1}}\{ \sin \,(\pi - x)\} = \pi - x$.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

A fair coin is tossed $n$ times. If the probability that head occurs $6$ times is equal to the probability that head occurs $8$ times, then n is equal to
Let $O$ be the origin. Let $\overline{ OP }= x \hat{ i }+ y \hat{ j }-\hat{ k }$ and $\overline{ OQ }=-\hat{ i }+2 \hat{ j }+3 x \hat{ k }, x , y \in R , x >0,$ be such that $|\overline{ PQ }|=\sqrt{20}$ and the vector $\overline{ OP }$ is perpendicular to $\overline{ OQ }$. If $\overline{ OR }=3 \hat{ i }+ z \hat{ j }-7 \hat{ k }, z \in R ,$ is coplanar with $\overline{ OP }$ and $\overline{ OQ },$ then the value of $x ^{2}+ y ^{2}+ z ^{2}$ is equal to ...... .
If $A=\left[a_{i j}\right]$ is a skew-symmetric matrix of order $n$, then
If $y = a{x^{n + 1}} + b{x^{ - n}}$, then ${x^2}{{{d^2}y} \over {d{x^2}}} = $
$\int_0^{\pi /2} {} \log \sin x\,dx = $
Cards are drawn one by one at random from a well shuffled full pack of $52$ cards until two aces are obtained for the first time. If $N$ is the number of cards required to be drawn, then ${P_r}\{ N = n\} ,$ where $2 \le n \le 50,$ is
For $\alpha, \beta \in \mathrm{R}$ and a natural number $\mathrm{n}$, let

$A_r=\left|\begin{array}{ccc}r & 1 & \frac{n^2}{2}+\alpha \\ 2 r & 2 & n^2-\beta \\ 3 r-2 & 3 & \frac{n(3 n-1)}{2}\end{array}\right|$. Then $2 A_{10}-A_8$

The equation of a curve passing through $\left( {2,\frac{7}{2}} \right)$ and having gradient $1 - \frac{1}{{{x^2}}}$at$(x,\,y)$is
If $\smallint f\left( x \right)\;dx = \varphi \left( x \right)$, then $\smallint {x^5}\;f\left( {{x^3}} \right)\;dx = $
The following lines are $\hat{\text{r}}=\Big(\hat{\text{i}}+\hat{\text{j}}\Big)+\lambda\Big(\hat{\text{i}}+2\hat{\text{j}}-\hat{\text{k}}\Big)+\mu\Big(-\hat{\text{i}}+\hat{\text{j}}-2\hat{\text{k}}\Big)$
  1. Collinear
  2. Skew-lines
  3. Co-planar lines
  4. Parallel lines