Solution

prove

Solution

Solution steps
Use the Pythagorean identity:

Popular Examples

prove cos(4x)=2cos^2(2x)-1prove sin(x)sec(x)= 1/(cos(x)csc(x))prove (1+tan^2(x))cos(x)=sec(x)prove 2/(cos^2(x))=2sec^2(x)prove 2cos^2(a)=(1+sec(2a))cos(2a)

Frequently Asked Questions (FAQ)

  • Is 1+tan^2(t)=sec^2(t) ?

    The answer to whether 1+tan^2(t)=sec^2(t) is True