Question

Using exact values, show that sin^2x-cos^2x= 1

Answer 1

x=30 degrees

Answer 2

but sin^2x-cos^2x is not equal to 1
sin^2x+cos^2x= 1

Answer 3

nono you gotta use that for each angle. and the angle is x=30 degrees

Answer 4

answer is (1/2)^2 + ( square root 3 / 3 ) ^2 = 1. idk how they got that

Answer 5

*sqaure root 3 / 2

Answer 6

u see the + sign in between??
thats because of sin^2x+cos^2x
and not sin^2x-cos^2x

Answer 7

rest values are correct,sin 30 =1/2 and cos 30 = (sqrt 3)/2

Answer 8

which gives 1/4 + 3/4 =1

Answer 9

ok

Answer 10

damn hartnn went hard on ya lol