Solution

prove

Solution

Solution steps
Use the Pythagorean identity:

Popular Examples

prove sec(θ)-cos(θ)=sin(θ)tan(θ)prove prove sin(x-pi/2)=-cos(x)prove prove sin^2(x)-cos^2(x)=1-2cos^2(x)prove prove cos(x)tan(x)=sin(x)prove prove cos^2(y)-sin^2(y)=1-2sin^2(y)prove

Frequently Asked Questions (FAQ)

  • Is sin^2(θ)+cos^2(θ)=1 ?

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