Solution

prove

Solution

Solution steps
Manipulating right side
Rewrite using trig identities
Rewrite as
Use the Angle Sum identity:
Simplify
Add similar elements:
We showed that the two sides could take the same form

Popular Examples

prove ((1-cos(a)))/(1+cos(a))=tan^2(a/2)prove cos(x-y)=cos(y-x)prove (sec^2(x))/(csc^2(x))=tan^2(x)prove tan(A+B)+tan(A-B)=((2sin(2A)))/((cos(2A)+cos(2B)))prove cos(3θ)=4cos^3(θ)-cos(θ)

Frequently Asked Questions (FAQ)

  • Is 2cos(x)sin(x)=sin(2x) ?

    The answer to whether 2cos(x)sin(x)=sin(2x) is True