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sin(

π cosθ

π sinθ

θ

এর মান কোনটি?

\pm \frac{π}{4} + \cos^{- 1} (\frac{1}{2 \sqrt{2}})

\pm \frac{π}{2} + \cos^{- 1} (\frac{1}{2 \sqrt{2}})

\pm \frac{π}{4} + \sin^{- 1} (\frac{1}{2 \sqrt{2}})

\pm \frac{π}{2} + \sin^{- 1} (\frac{1}{2 \sqrt{2}})

\pm \frac{π}{4} + \cos^{- 1} (\frac{1}{i \sqrt{2}})

ANS : 1

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