Question

If Sin A = a/b , then Cos A is equal to​

Answer 1

Answer:

Step-by-step explanation:

sin= p/h=a/b

Step-by-step explanation:

cos a=b/h

so we know

perpendicular = a

hypotenuse=b

by h2=p2+b2 root b2-a2 will come

so final answer is √B^2-A^2/B

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