1/2 cosec-¹ (1+x²)/2x = ?

sin a + cos a = 1 হলে, a = ?

sin(2sin-¹x) = ?

cos tan-¹ cot sin-¹ x = ?

cosec x . cot x = 2√3 হলে X=?

tan-¹(x+1) + tan-¹(x-1) = tan-¹(8/31) হলে x = ?

sin(tan-¹ 1/2 + cot-¹ 3) = ?

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

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2tan^-1 2=?

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

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sin(2tan^-1 x) =?

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cot(cos^-1 1/2)

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4(sin^-1 1/√5+ cot^-1 3)=?

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tan^-1 sin cos^-1 √(2/3)=?

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tan cos^-1=sin cot^-1 1/2 সমাধান?

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cot^-1 3 +cosec^-1 √5=?

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sec^-1 3=tan^-1 x হলে x=?

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tan cos^-1 x = sin tan^-1 2 হলে x=?

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

tan(x+y) = 33 ও x = tan-¹ 3 হলে y=?