Solution

prove

Solution

Solution steps
Use the Pythagorean identity:

Popular Examples

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

Frequently Asked Questions (FAQ)

  • Is cos^2(2x)=1-sin^2(2x) ?

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