Solution

prove

Solution

Solution steps
Manipulating left side
Rewrite using trig identities
We showed that the two sides could take the same form

Popular Examples

prove 1+cot^2(30)=csc^2(30)prove prove 1/(1+tan^2(θ))=cos^2(θ)prove prove cos(2x)=cos^2(x)prove prove sin^2(x)-1=cos^2(x)prove prove tan(pi/4-t)=(1-tan(t))/(1+tan(t))prove

Frequently Asked Questions (FAQ)

  • Is cos^2(9x)-sin^2(9x)=cos(18x) ?

    The answer to whether cos^2(9x)-sin^2(9x)=cos(18x) is True