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cot(sin^-1 1/2)=?

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sin(tan^-1 1/2 +cot^-1 3)=?

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2tan^-1 2=?

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tan{sin^-1(1/2)}

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sin^-1x=A হলে cosA=?

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sin(2tan^-1 x) =?

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x=sin cos^-y হলে x^2+y^2=?

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cot(cos^-1 1/2)

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cot^-1 3 + sin^-1 1/√5 =?

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4(sin^-1 1/√5+ cot^-1 3)=?

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sin cot^-1 tan cos^-1 x=?

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tan^-1 sin cos^-1 √(2/3)=?