જો $\frac{\pi}{2} \leq x \leq \frac{3 \pi}{4}$ હોય,તો $\cos ^{-1}\left(\frac{12}{13} \cos x+\frac{5}{13} \sin x\right)$ ની કિંમત શોધો.

  • A
    $x-\tan ^{-1} \frac{4}{3}$
  • B
    $x-\tan ^{-1} \frac{5}{12}$
  • C
    $x+\tan ^{-1} \frac{4}{5}$
  • D
    $x+\tan ^{-1} \frac{5}{12}$

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$k$ ના તમામ મૂલ્યોનો ગણ જેના માટે $(\tan^{-1} x)^3 + (\cot^{-1} x)^3 = k \pi^3$,$x \in \mathbb{R}$,એ અંતરાલ છે

$\Delta ABC$ માં સામાન્ય સંકેતો સાથે,જો $C=90^{\circ}$ હોય,તો $\tan ^{-1}\left(\frac{a}{b+c}\right)+\tan ^{-1}\left(\frac{b}{c+a}\right)=$

જો $\frac{\pi}{4} + \sum_{p=1}^{11} \tan^{-1} \left(\frac{2^{p-1}}{1+2^{2p-1}}\right) = \tan^{-1} \alpha$ હોય,તો $\tan \alpha$ ની કિંમત . . . . . . થાય.

$\sin^{-1} x + \cos^{-1} x$ ની કિંમત શું થાય?

$\cos \left(\cos ^{-1} \frac{1}{3}+\cos ^{-1} \frac{1}{5}\right)+\cos \left(\sin ^{-1} \frac{1}{3}+\sin ^{-1} \frac{1}{5}\right) =$ . . . . . . .

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