sin45° = 1/√2 হয়, cos45° = কত?

A 1/√2

B 2/√2

C 1

D 3/√2

Solution

Correct Answer: Option A

প্রশ্ন: sin45° = 1/√2 হয়, cos45° = কত?

সমাধান:
sin45° = 1/√2 , cos45° = 1/√2

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