$\tan ^{-1} 2+\tan ^{-1} 3=$

  • A
    $\frac{5 \pi}{4}$
  • B
    $\frac{\pi}{4}$
  • C
    $-\frac{\pi}{4}$
  • D
    $\frac{3 \pi}{4}$

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Similar Questions

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

સાબિત કરો કે $\sin ^{-1} \frac{3}{5}-\sin ^{-1} \frac{8}{17}=\cos ^{-1} \frac{84}{85}$

જો $\cot ^{-1}(7)+\cot ^{-1}(8)+\cot ^{-1}(18)=\cot ^{-1} x$ હોય,તો $x$ ની કિંમત શોધો.

$\cos ^{-1}\left\{\frac{1}{\sqrt{2}}\left(\cos \frac{9 \pi}{10}-\sin \frac{9 \pi}{10}\right)\right\}$ નું મૂલ્ય શોધો.

જો $y = \cos^{-1}(\cos x)$ હોય,તો $x = \frac{5\pi}{4}$ આગળ $\frac{dy}{dx}$ શોધો.

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