$\cos^{-1}\left(\frac{15}{17}\right) + 2\tan^{-1}\left(\frac{1}{5}\right) = $

  • A
    $\frac{\pi}{2}$
  • B
    $\cos^{-1}\left(\frac{171}{221}\right)$
  • C
    $\frac{\pi}{4}$
  • D
    इनमें से कोई नहीं

Explore More

Similar Questions

यदि $y = \sec^{-1}\left( \frac{\sqrt{x} + 1}{\sqrt{x} - 1} \right) + \sin^{-1}\left( \frac{\sqrt{x} - 1}{\sqrt{x} + 1} \right)$ है,तो $\frac{dy}{dx} = $

$x$ का वह मान,जिसके लिए $\sin \left(\cot ^{-1}(x)\right)=\cos \left(\tan ^{-1}(1+x)\right)$ है,है

यदि $(\cos ^{-1} x)^2-(\sin ^{-1} x)^2 > 0$ है,तो

यदि $\tan^{-1} (x+ 2)+ \tan^{- 1}( x -2)= \tan^{-1} (\frac{1}{2})$ है,तो $x$ के मान(मानों) का योग किसके बराबर है?

$\begin{aligned} & \text{यदि } \cot \left(\cos ^{-1} x\right)=\sec \left\{\tan ^{-1}\left(\frac{a}{\sqrt{b^2-a^2}}\right)\right\} \\ & b>a, \text{ तो } x= \end{aligned}$

Vedclass Products

For Students

Vedclass Test Series

Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.

Start Free Trial
For Teachers

Exam Paper Generator

Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.

Try Free
For Institutes

Online Exam Module

Live online exams with unlimited students, 360° analytics & white-label branding.

See Demo