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Question

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সূক্ষকোণ হলে নিচের কোন সম্পর্কটি সঠিক?

\sin^{2} θ + \cos^{2} θ = 1

\sin θ + \cos θ < 1

\tan^{2} - s e c^{2} θ = 1

\sin^{2} + \cos^{2} > 1

ANS : 1

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