MCQ
$\sec ({\rm{cose}}{{\rm{c}}^{ - 1}}x)$ is equal to
  • ${\rm{cosec}}({\sec ^{ - 1}}x)$
  • B
    $\cot x$
  • C
    $\pi $
  • D
    None of these

Answer

Correct option: A.
${\rm{cosec}}({\sec ^{ - 1}}x)$
a
(a) We know that  $sec(cosec-1x) = cosec(sec-1 x)$

$ = \frac{{|x|}}{{\sqrt {{x^2} - 1} }}$, for $|x|\, > \,1$.

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

The differential equation having solution as $y=17 e^x+a e^{-x}$ is
Area of triangle whose two vertices formed from the $x-$axis and line $y = 3 - |x|$ is:
Differential coefficient of ${\sin ^{ - 1}}{{1 - x} \over {1 + x}} \,\,,w.r.t$ $\sqrt x $ is
If $(0, 0),(a, 0)$ and $(0, b)$ are collinear, then:
Let the function $f: R \rightarrow R$ be defined by $f(x)=x-x^2+(x-1) \sin x$ and let $g: R \rightarrow R$ be an arbitrary function. Let $f g: R \rightarrow R$ be the product function defined by $(f g)(x)=f(x) g(x)$. Then which of the following statements is/are TRUE?

$(A)$ If $g$ is continuous at $x=1$, then $f g$ is differentiable at $x=1$

$(B)$ If fg is differentiable at $x=1$, then $g$ is continuous at $x=1$

$(C)$ If $g$ is differentiable at $x=1$, then $f g$ is differentiable at $x=1$

$(D)$ If $fg$ is differentiable at $x =1$, then $g$ is differentiable at $x =1$

The sum of non-real roots of the polynomial equation $x^3+3 x^2+3 x+3=0$ is
Choose the correct answer from the given four options.
Let f : R → R be defined by $\text{f}(\text{x})=\frac{1}{\text{x}}\ \forall\ \text{x}\in\text{R}.$ Then f is:
Solution of the differential equation $\cos x\;dy = y\left( {\sin x - y} \right)dx,0 < x < \frac{\pi }{2}$ is
If $\text{f}(\text{x})=\sqrt{\text{x}^2+6\text{x}+9},$ then $f\ '(x)$ is equal to:
Let $\overrightarrow{O P}=\frac{\alpha-1}{\alpha} \hat{i}+\hat{j}+\hat{k}, \overline{O Q}=\hat{i}+\frac{\beta-1}{\beta} \hat{j}+\hat{k}$ and $\overrightarrow{O R}=\hat{i}+\hat{j}+\frac{1}{2} \hat{k}$ be three vectors, where $\alpha, \beta \in R -\{0\}$ and $O$ denotes the origin. If $(\overline{O P} \times \overrightarrow{O Q}) \cdot \overrightarrow{O R}=0$ and the point $(\alpha, \beta, 2)$ lies on the plane $3 x+3 y-z+I=0$, then the value of $l$ is. . . . .