Solution

prove

Solution

Solution steps
Use the Pythagorean identity:

Popular Examples

prove sec^2(a)= 1/(1-sin^2(a))prove prove sec(2x)+tan(2x)=((cos(x)+sin(x)))/((cos(x)-sin(x)))prove prove (sec(-1))/(1-cos(x))=sec(x)prove prove cos^2(0)-sin^2(0)=1+sin(0)prove prove (1+sec(x))/(csc(x))=cot(x)cos(x)prove

Frequently Asked Questions (FAQ)

  • Is (cos^2(x)+sin^2(x))=1 ?

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