Solution

prove

Solution

Solution steps
Use the Pythagorean identity:

Popular Examples

prove csc(a)-sin(a)=cos(a)cot(a)prove prove cos^2(α)+cos^2(α)tan^2(α)=1prove prove cos(pi/7)=sin(pi/2-pi/7)prove prove sin(pi/4+x)=sqrt(2)(cos(x)+sin(x))prove prove sec(x)csc(x)=cot(x)+tan(x)prove

Frequently Asked Questions (FAQ)

  • Is sin^2(3x)+cos^2(3x)=1 ?

    The answer to whether sin^2(3x)+cos^2(3x)=1 is True