Quantitative Aptitude Trigonometry Trigonometric Ratios and Identities

যদি A + B = 90 ° এবং cos B = 1/3 হয়; তাহলে sin A এর মান হ'ল:

A. 1/2

B. 1/4

C. 1/3

D. 2/3

1
C
2
B
3
ডি
4
A

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