allery2 sin 30° cos 30° কোনটো প্ৰকৃত মানৰ সমান?
A1/2
B√3/2
C√3
D1
Answer & Solution
Correct answer: B. √3/2
ই 2 x 1/2 x √3/2 = √3/2 ৰ সমান, যিটো sin 60 degrees।
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