Question

How do you use the double angle or half angle formulas to simplify `5-10sin^2x`?

Answer 1

`5-10sin^2(x) = 5*cos(2x)`

Explanation:

By Double Angle Formula
`color(white)("XXX")cos(2x) = 1-2sin^2(x)`

`rArrcolor(white)("XXX")5*cos(2x) = 5-10sin^2(x)`