Solution

prove

Solution

Solution steps
Use the Pythagorean identity:

Popular Examples

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

Frequently Asked Questions (FAQ)

  • Is cos^2(z)+sin^2(z)=1 ?

    The answer to whether cos^2(z)+sin^2(z)=1 is True