Question

Prove that Cos A Tan A = Sin A​

Answer 1

Answer:

We know

$\tan(a) = \frac{ \sin(a) }{ \cos(a) }$

Substituting value of Tan A

$\cos(a) \times \frac{ \sin(a) }{ \cos(a) }$

Cos A cancels out

and we are left with Sin A

which is equal to RHS

(Hence Proved)

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Answer 2

1. since tan A = sin A / Cos A
2. then putting this value in given equation , we get