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(z+w)=sin(z)cos(w)+cos(z)sin(w)prove tan^2(x)=((1-cos(2x)))/(1+cos(2x))prove cos(0)tan(0)=sin(0)prove cos(pi/6)= 4/3 cos^3(pi/6)prove tan(-pi/4)=-1

Frequently Asked Questions (FAQ)

  • Is sin(-pi/4)=-sin(pi/4) ?

    The answer to whether sin(-pi/4)=-sin(pi/4) is True