જો ત્રિકોણ $ABC$ માં,$A = \tan^{-1} 2$ અને $B = \tan^{-1} 3$ હોય,તો ખૂણો $C$ કેટલો થાય?

  • A
    $\pi / 2$
  • B
    $\pi / 3$
  • C
    $\pi / 4$
  • D
    આમાંથી કોઈ નહીં

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કિંમત શોધો: $\cos ^{-1}\left(\frac{4}{5}\right)+\cos ^{-1}\left(\frac{12}{13}\right)$

જો $0 < |x| < \sqrt 2$ માટે ${\sin ^{ - 1}}\left( {x - \frac{{{x^2}}}{2} + \frac{{{x^3}}}{4} - \dots} \right) + {\cos ^{ - 1}}\left( {{x^2} - \frac{{{x^4}}}{2} + \frac{{{x^6}}}{4} - \dots} \right) = \frac{\pi }{2}$ હોય,તો $x$ ની કિંમત શોધો.

$2 \tan ^{-1}\left(\frac{1}{3}\right)+\cos ^{-1}\left(\frac{3}{5}\right)=$

વિધેયને તેના સરળ સ્વરૂપમાં લખો: $\tan ^{-1}\left(\frac{1}{\sqrt{x^{2}-1}}\right), |x|>1$

જો $\sin \left(\sin ^{-1} \frac{1}{5}+\cos ^{-1} x\right)=1$ હોય,તો $x$ ની કિંમત શોધો.

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