alleryএটা সমকোণী ত্ৰিভুজৰ বাহুবোৰ হ'ল 1, √3 আৰু 2। 1 দৈৰ্ঘ্যৰ বাহুটোৰ বিপৰীত কোণটোৰ cosine কিমান?
A1/2
B1/√2
C√3/2
D1
Answer & Solution
Correct answer: C. √3/2
এটা 30-60-90 ত্ৰিভুজত 30 ডিগ্ৰীৰ সংলগ্ন বাহুটো অতিভুজৰ √3/2 গুণ।
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