Solution

prove

Solution

Solution steps
Use the Pythagorean identity:

Popular Examples

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

Frequently Asked Questions (FAQ)

  • Is sin^2(t)+cos^2(t)=1 ?

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