I'd like an explanation on how to factor and simplify 1 - 2sin²x + sin⁴x and turn that into cos⁴x thank you! - QAmmunity.org

I'd like an explanation on how to factor and simplify 1 - 2sin²x + sin⁴x and turn that into cos⁴x thank you!

asked Jul 28, 2021 147k views

1 Answer

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