sin(π cosθ)=cos(π sinθ) হলে θ এর মান কোনটি?

A ±π4+cos-1(122)
B ±π2+cos-1(122)
C ±π4+sin-1(122)
D ±π2+sin-1(122)

Correct Answer: ±π4+cos-1(122)

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