alleryএকটি সূক্ষ্মকোণের cosine হলো 0.6। এর sine-এর বর্গ কত?
A0.36
B0.8
C0.64
D0.4
Answer & Solution
Correct answer: C. 0.64
Sin squared হলো 1 - 0.36 = 0.64।
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