Question

if tanA - 4/tanA=3 , find sin2A.​

Answer 1

Answer:

SinA=4/5

Explanation:

given :- tanA=4/3

we already know that tanA=P/B

From Pythagorean theorem we get..

H²=P²+B²

H²=4²+3²

H²=16+9

H²=25

H²=5²

H=5

SinA=P/H

CosA=B/H

from that

SinA= 4/5