Solution

prove

Solution

Solution steps
Use the Pythagorean identity:

Popular Examples

prove (sin^2(x)+cos^2(x))^3=1prove prove tan^2(x)+1= 1/(cot^2(x))+1prove prove sec(pi/4+x)sec(pi/4-x)=2sec(2x)prove prove cot(x)sec(x)(1-cos^2(x))=sin(x)prove prove tan(x)+2=2+sec(x)sin(x)prove

Frequently Asked Questions (FAQ)

  • Is 1=cos^2(x)+sin^2(x) ?

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