Solution

prove

Solution

Solution steps
Manipulating left side
Use the negative angle identity:
We showed that the two sides could take the same form

Popular Examples

prove sec^2(θ)-1=(tan(θ))/(cot(θ))prove cot(x)=(sin(2x))/(1-cos(x^2))prove sec^4(θ)-tan^4(θ)=2tan^2(θ)+1prove cos(-pi/4)=sin(pi/4)prove sin(u)cos(u)= 1/2 sin(2u)

Frequently Asked Questions (FAQ)

  • Is cos(pi)=cos(-pi) ?

    The answer to whether cos(pi)=cos(-pi) is True