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

Frequently Asked Questions (FAQ)

  • Is cos(-2θ)=cos(2θ) ?

    The answer to whether cos(-2θ)=cos(2θ) is True