# How do you use the double angle formula to rewrite #5-10sin^2x#?

Think about (list) double angle formulas until you come to one that looks useful.

If I factored out a 5, I'd have:

So there it is.

By signing up, you agree to our Terms of Service and Privacy Policy

To rewrite (5 - 10\sin^2(x)) using the double angle formula, follow these steps:

- Recognize that (\sin^2(x) = \frac{1 - \cos(2x)}{2}), which is the double angle formula for sine squared.
- Substitute (\sin^2(x)) with (\frac{1 - \cos(2x)}{2}) in the expression (5 - 10\sin^2(x)).
- Simplify the expression to get the final result.

By signing up, you agree to our Terms of Service and Privacy Policy

- How do you prove (sinx)(cosx)(tanx) + cos2x = 1 ?
- How do you prove #(tan3t-tant)/(1+tan3t*tant)=(2tant)/(1-tan^2t)#?
- How do you solve #cos 2x = - sqrt3 / 2# using the double angle identity?
- Solve the equation #cos2x+sin^2x=4/9# to the nearest hundredth where #0lexle360^0#?
- How do you prove #(tan^3x - 1) /( tanx - 1) = tan^2x + tanx + 1#?

- 98% accuracy study help
- Covers math, physics, chemistry, biology, and more
- Step-by-step, in-depth guides
- Readily available 24/7