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

I believe the answer is cos^4x

I want to say that 1-2(1+sin^2x)(sin^2x) if I move it around I get

I do not know where to go next or how it is cos^4x

Printable View

- November 29th 2010, 04:30 PMIDontunderstandfactor
1-2sin^2x+sin^4x

I believe the answer is cos^4x

I want to say that 1-2(1+sin^2x)(sin^2x) if I move it around I get

I do not know where to go next or how it is cos^4x - November 29th 2010, 04:37 PMdwsmith
Double angle formulas may help here

- November 29th 2010, 04:39 PMArchie Meade
- November 29th 2010, 04:51 PMSoroban
Hello, IDontunderstand!

Quote:

Factor: .