How to simplify sin^2x sin^2x?

sf2or5eek8

sf2or5eek8

Answered question

2023-01-04

How to simplify sin2xsin2x?

Answer & Explanation

Collin Johns

Collin Johns

Beginner2023-01-05Added 10 answers

sin2x.sin2x=sin4x
Virginia Mendez

Virginia Mendez

Beginner2023-01-06Added 3 answers

the formula is sin2x+cos2x=1
sin2x =1-cos2x
Replace with this if you want to sin2x sin2x
The equation is now like this:
(1-cos2x)(1-cos2x)=0
Divide the brackets by two:
1-cos2x-cos2x+cos4x2
Group like terms and put them in the right order:
cos4x2-2cos2x+1=0

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