Solution

prove

Solution

Solution steps
Use the Angle Sum identity:

Popular Examples

prove sin^2(x)=(sin(x))^2prove prove sin(u)csc(u)-cos^2(u)=sin^2(u)prove prove sin(x)+cot(x)cos(x)=csc(x)prove prove 3sin^2(θ)+4cos^2(θ)=3+cos^2(θ)prove prove (1+cot^2(θ))sin^2(θ)=1prove

Frequently Asked Questions (FAQ)

  • Is sin(x+y)=sin(x)cos(y)+sin(y)cos(x) ?

    The answer to whether sin(x+y)=sin(x)cos(y)+sin(y)cos(x) is True