Math, asked by harshcustomized345, 1 day ago

given that sin = a/b , then cosa is equal to

Answers

Answered by scvn0135sv
0

Answer:

cos a = ?

Step-by-step explanation:

sin a = a/b = opposite / hypotenuse            

cos a = adjacent / hypotenuse

cos a = \sqrt{a^2+b^2} /b                                                [By Pythagoras Theorem]

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