Solution

prove

Solution

Solution steps
Use the Pythagorean identity:

Popular Examples

prove 1-cot(x)=sqrt(csc^2(x)-2cot(x))prove (csc^2(x))/(cot^2(x))=1+tan^2(x)prove sin(x/2)=sqrt((1+cos(x))/2)prove 1+1/(tan^2(θ))= 1/(sin^2(θ))prove sin^2(x)*(1+cot^2(x))=1

Frequently Asked Questions (FAQ)

  • Is sin^2(z)+cos^2(z)=1 ?

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