असमिका $\cos ^{-1} x < \sin ^{-1} x$ का हल समुच्चय क्या है?

  • A
    $[-1, 1]$
  • B
    $\left[\frac{1}{\sqrt{2}}, 1\right]$
  • C
    $[0, 1]$
  • D
    $\left(\frac{1}{\sqrt{2}}, 1\right)$

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यदि $\sin ^{-1} x+\cos ^{-1} y=\frac{3 \pi}{10}$ है,तो $\cos ^{-1} x+\sin ^{-1} y$ का मान ज्ञात कीजिए।

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