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 sin(a+90)=cos(90)prove csc^2(x)tan(x)-cot(x)=tan(x)prove (sec(θ)-1)/(sec(θ)+1)=(tan(θ)-sin(θ))/(tan(θ)+sin(θ))prove cos^4(a)-sin^4(a)+1=2cos^2(a)prove (sec(-x))/(tan(x)+cot(x))=sin(x)

Frequently Asked Questions (FAQ)

  • Is cot(-θ)=-cot(θ) ?

    The answer to whether cot(-θ)=-cot(θ) is True