Question

If √3tanA-1=0 find value of sin square A - cos squareA

Answer 1

Answer:

Step-by-step explanation:

Root3 tanA =1

TanA=1/root 3

TanA=tan30°

On comparing,

A=30°

Now ,

Sin square A -cos square A

=sin square 30° - cos square 30°

=(1/2)²- (root3/2)²

=1/4-3/4

=-1/2 ANSWER.