$3 \tan^{-1} a$ બરાબર શું થાય?

  • A
    $\tan^{-1} \frac{3a + a^3}{1 + 3a^2}$
  • B
    $\tan^{-1} \frac{3a - a^3}{1 + 3a^2}$
  • C
    $\tan^{-1} \frac{3a + a^3}{1 - 3a^2}$
  • D
    $\tan^{-1} \frac{3a - a^3}{1 - 3a^2}$

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Similar Questions

પ્રતિ-ત્રિકોણમિતીય વિધેયોના મુખ્ય મૂલ્યોને ધ્યાનમાં લેતા,$\frac{3}{2} \cos ^{-1} \sqrt{\frac{2}{2+\pi^2}}+\frac{1}{4} \sin ^{-1} \frac{2 \sqrt{2} \pi}{2+\pi^2}+\tan ^{-1} \frac{\sqrt{2}}{\pi}$ નું મૂલ્ય શોધો.

જો ${\tan ^{ - 1}}\frac{{1 - x}}{{1 + x}} = \frac{1}{2}{\tan ^{ - 1}}x$ હોય,તો $x = $

$\sin \left( {2{{\tan }^{ - 1}}\left( {\frac{1}{3}} \right)} \right) + \cos ({\tan ^{ - 1}}(2\sqrt 2 ))$ ની કિંમત શોધો.

જો ${\sin ^{ - 1}}\left( {\frac{{2a}}{{1 + {a^2}}}} \right) + {\sin ^{ - 1}}\left( {\frac{{2b}}{{1 + {b^2}}}} \right) = 2{\tan ^{ - 1}}x,$ હોય,તો $x = $

જો $\alpha > \beta > \gamma > 0$ હોય,તો પદાવલિ $\cot ^{-1}\left\{\beta+\frac{(1+\beta^2)}{(\alpha-\beta)}\right\}+\cot ^{-1}\left\{\gamma+\frac{(1+\gamma^2)}{(\beta-\gamma)}\right\}+\cot ^{-1}\left\{\alpha+\frac{(1+\alpha^2)}{(\gamma-\alpha)}\right\}$ ની કિંમત શું થાય?

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