Solution

prove

Solution

Solution steps
Use the Pythagorean identity:

Popular Examples

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

Frequently Asked Questions (FAQ)

  • Is 1+tan^2(a)=sec^2(a) ?

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