Question

26) Prove the following
1)
Cosa tana = sina​

Answer 1

Answer:

cos a = Adjacent side to angle a / hypotenuse of the triangle

sin a = opposite side to angle a / hypotenuse of the triangle

tan a = opposite side to angle a / adjacent side to angle a

Hence , we can say sin a / cos a = tan a

Therefore cos a tan a = sin a

Hence , prooved

Answer 2

Answer:

To prove:

cos θ tan θ = sin θ

Now

LHS

= cos θ tan θ

sin θ

= cos θ × ______

cos θ

= sin θ

RHS

Hence Proved.