Solution

prove

Solution

Solution steps
Use the Pythagorean identity:

Popular Examples

prove cos(2x)cos(x)-sin(2x)sin(x)=4cos^3(x)-3cos(x)prove prove ((cot(x)+tan(x)))/(csc(x))=sec(x)prove prove csc^2(b)-csc^2(b)cos^2(b)=1prove prove cos((5θ)/2)cos(θ/2)= 1/4 cos^2(5θ)prove prove sin(3v)=3sin(v)-4sin^3(v)prove

Frequently Asked Questions (FAQ)

  • Is sin^2(15x)+cos^2(15x)=1 ?

    The answer to whether sin^2(15x)+cos^2(15x)=1 is True