Solution

prove

Solution

Solution steps
Use the Pythagorean identity:

Popular Examples

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

Frequently Asked Questions (FAQ)

  • Is cos^2(θ)+sin^2(θ)=1 ?

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