$\tan \left[ 2\tan^{-1}\left( \frac{1}{5} \right) - \frac{\pi}{4} \right] = $

  • A
    $\frac{17}{7}$
  • B
    $-\frac{17}{7}$
  • C
    $\frac{7}{17}$
  • D
    $-\frac{7}{17}$

Explore More

Similar Questions

$\cot \left(\tan ^{-1} a+\cot ^{-1} a\right)$ का मान ज्ञात कीजिए।

सिद्ध कीजिए कि $2 \tan ^{-1} \frac{1}{2} + \tan ^{-1} \frac{1}{7} = \tan ^{-1} \frac{31}{17}$.

मान लीजिए कि $a_1=1, a_2, a_3, a_4, \ldots$ क्रमागत प्राकृतिक संख्याएँ हैं। तो $\tan ^{-1}\left(\frac{1}{1+ a _1 a _2}\right)+\tan ^{-1}\left(\frac{1}{1+ a _2 a _3}\right)+\ldots+\tan ^{-1}\left(\frac{1}{1+ a _{2021} a _{2022}}\right)$ का मान ज्ञात कीजिए।

यदि $\tan ^{-1} x+\tan ^{-1} y=\frac{4 \pi}{5}$ है,तो $\cot ^{-1} x+\cot ^{-1} y$ का मान ज्ञात कीजिए।

$\tan \left(2 \tan^{-1}\left(\frac{1}{3}\right)+\tan^{-1}\left(\frac{1}{7}\right)\right) = $

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