Question

What basic trigonometric identity would you use to verify that cot x sin x = cos x?

Answer 1

Answer:

cot x = cos x / sin x.

Step-by-step explanation:

You would use cot x = cos x / sin x :

cot x sin x =  (cos x / sin x) * sin x

We cancel the sin x 's to give cos x.

Answer 2

The relation cot x= cos x/ sin x

What is Trigonometry?

The branch of mathematics concerned with specific functions of angles and their application to calculations

RHS:

cot x * sin x

= cps x/ sin x * sin x

= cos x * sin x / sin x

= cos x.

Hence, the relation used is cot x= cos x / sin x.

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