Question

How would you verify this identity?

4sin^2 x -1
____________ = 2 sin x -1
2sin^2 x +1

Answer 1

Do you know that 4sin^2 x-1 is factorable? :)

Answer 2

is that the difference of two squares?

Answer 3

Yeah, do you know how to factor it out?

Answer 4

OMG thank you thank you thank you!!!!!!!!!!!!!!1111

Answer 5

You knocked some sense on me :D

Answer 6

4sin^2 x -1 , factors as 2sin ++1 (2sin -1) , righT?

Answer 7

Yes. :)

Answer 8

Thanks again :)

Answer 9

No problem. :)