Solution
prove
Solution
Solution steps
Manipulating right side
Rewrite using trig identities
Use the Double Angle identity:
Simplify
We showed that the two sides could take the same form
Popular Examples
prove tan(pi/2-x)cot(x)=csc^2(x)-1prove cot^2(α)=cos^2(α)+(cot(α)*cos(α))^2prove 1/(tan(α))*1/(cos(α))= 1/(sin(α))prove sec(x)=arccos(x)prove tan(θ)+sin(θ)=4(1+cos(θ))
Frequently Asked Questions (FAQ)
Is cos(8x)=cos^2(4x)-sin^2(4x) ?
The answer to whether cos(8x)=cos^2(4x)-sin^2(4x) is True