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Sec θ কোন ত্রিকোণমিতিক অনুপাতের অন্যোন্যক?

Acos θ
Btan θ
Ccosec θ
Dsin θ
Answer & Solution
Correct answer: A. cos θ
Secant হল 1 divided by cosine, অর্থাৎ hypotenuse over adjacent।
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