Question

if sin A=4/5 then 1-2 sin2A​

Answer 1

Answer:

-7/25

Step-by-step explanation:

sin A= 4/5 then perpendicular=4x and hypotenuse=5x

1- (2sin2 A)

= 1- (2* (4/5)^2)

1- (2*( 16/25))

1- 32/25

(25-32)/25

-7/25

Please mark me brainliest