$\tan \left\{\frac{1}{2} \sin ^{-1}\left(\frac{2 x}{1+x^2}\right)+\frac{1}{2} \cos ^{-1}\left(\frac{1-y^2}{1+y^2}\right)\right\}$ નું મૂલ્ય શું છે?

  • A
    $\frac{x+y}{1-x y}$
  • B
    $\frac{x-y}{1+x y}$
  • C
    $\frac{x-y}{1-x y}$
  • D
    $\frac{x+y}{1+x y}$

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સાબિત કરો કે $\tan ^{-1} \frac{1}{2}+\tan ^{-1} \frac{2}{11}=\tan ^{-1} \frac{3}{4}$

જો $\sin ^{-1} x + \sin ^{-1} y = \frac{\pi}{2}$ હોય,તો $x^{2}$ ની કિંમત શું થાય?

જો $x, y, z$ એ $A.P.$ માં હોય અને $\tan ^{-1} x, \tan ^{-1} y, \tan ^{-1} z$ પણ $A.P.$ માં હોય,તો

$2{\sin ^{ - 1}}\frac{3}{5} + {\cos ^{ - 1}}\frac{{24}}{{25}} = $

વિધેયને તેના સરળ સ્વરૂપમાં લખો: $\tan ^{-1}\left(\frac{3 a^{2} x-x^{3}}{a^{3}-3 a x^{2}}\right), a>0 ; \frac{-a}{\sqrt{3}} \leq x \leq \frac{a}{\sqrt{3}}$

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