alleryযিকোনো কোণ θ-ৰ বাবে sin²θ + cos²θ-ৰ মান কিমান?
A1
B0
Csin 2θ
D2
Answer & Solution
Correct answer: A. 1
এইটো পাইথাগোৰীয় অভেদ, যাৰ মান সদায় 1-ৰ সমান।
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