જો $\sin ^{-1} a=\alpha+\beta$ અને $\sin ^{-1} b=\alpha-\beta$ હોય,તો $\sin ^2 \alpha+\cos ^2 \beta=$ . . . . . . .

  • A
    $a b-1$
  • B
    $1-a b$
  • C
    $1+a b$
  • D
    $a b$

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Similar Questions

$x=\frac{1}{5}$ હોય ત્યારે $\cos \left(2 \cos ^{-1} x+\sin ^{-1} x\right)$ ની કિંમત શોધો,જ્યાં $0 \leq \cos ^{-1} x \leq \pi$ અને $-\frac{\pi}{2} \leq \sin ^{-1} x \leq \frac{\pi}{2}$ છે.

$\sin [\cot ^{ - 1}(\cos \tan ^{ - 1}x)] =$

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

જો ${\tan ^{ - 1}}x + {\tan ^{ - 1}}y + {\tan ^{ - 1}}z = \pi ,$ હોય તો $\frac{1}{{xy}} + \frac{1}{{yz}} + \frac{1}{{zx}} = $

જો $\cos ^{-1} x+\cos ^{-1} y+\cos ^{-1} z=3 \pi$ હોય,તો $x^2+y^2+z^2-2xyz$ ની કિંમત શોધો.

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