Question

prove that 3cos^2a = sin^2a​

Answer 1

Answer:

Step-by-step explanation:

3cos2a= sin2a

3 = sin2a / cos2a

tan A =-/3

Tan A = 60°

Hope it helps u...

Answer 2

Answer:

it can't be proved. it is because it is trigonometric equation. in this we can only find the value of "a".

Step-by-step explanation:

3 cos^2a = sin^2a

3=sin^2a/cos^2a

tan^2a=3

tana=✓3

therefore, a=tan(arc√3)=60° Ans.

Hope you will be satisfied.

Thanks and be happy......