allery1 − cos²θ ৰাশিটো কাৰ সমান?
A1
Bsin²θ
Ccos²θ
Dtan²θ
Answer & Solution
Correct answer: B. sin²θ
sin squared যোগ cos squared সমান 1 ক পুনৰ সজালে sin squared theta পোৱা যায়।
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