Solution

prove

Solution

Solution steps
Use the Pythagorean identity:

Popular Examples

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

Frequently Asked Questions (FAQ)

  • Is cos^2(r)-1=-sin^2(r) ?

    The answer to whether cos^2(r)-1=-sin^2(r) is True