Solution

prove

Solution

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

Popular Examples

prove sin^2(α)+sin^2(α)tan^2(α)=tan^2(α)prove cos(75)=sqrt((1+cos(150))/2)prove cos(7x)-cos(3x)=-2sin(5x)sin(2x)prove (sec^2(a))/(2-sec^2(a))=sec(2a)prove cot(a)+tan(a)=csc(a)sec(a)

Frequently Asked Questions (FAQ)

  • Is 2sin(-t)cos(-t)=2sin(-t)cos(t) ?

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