Solution

prove

Solution

Solution steps
Use the Pythagorean identity:

Popular Examples

prove sin^3(2x)=(1/2 sin(2x))(1-cos(4x))prove prove cos(θ)tan(θ)=sin(θ)prove prove (sin^2(x))/(1-cos(x))=1+cos(x)prove prove sin(x+y)+sin(x-y)=2sin(x)cos(y)prove prove cos(2θ)=cos^2(θ)-sin^2(θ)prove

Frequently Asked Questions (FAQ)

  • Is 1+tan^2(x)=sec^2(x) ?

    The answer to whether 1+tan^2(x)=sec^2(x) is True