MCQ
$\sin \cot ^{-1} x$ का मान होगा$-$
  • A
    $\sqrt{1+x^2}$
  • B
    $\left(1+x^2\right)^{\frac{3}{2}}$
  • C
    $x$
  • $\left(1+x^2\right)^{\frac{-1}{2}}$

Answer

Correct option: D.
$\left(1+x^2\right)^{\frac{-1}{2}}$
Image
$\sin \cot ^{-1} x$
माना $\cot ^{-1} x=\theta \quad \therefore x=\cot \theta$
$\therefore \sin \theta=\frac{1}{\sqrt{1+x^2}}$
या $\sin \theta=\left(1+x^2\right)^{\frac{-1}{2}}$  अतः सही विकल्प $(D)$ है।

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