Solution

prove

Solution

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

Popular Examples

prove tan^2(x)-tan^2(x)sin^2(x)=sin^2(x)prove csc(2x)=(csc(x))/(2cos(x))prove (1-tan(x))/(1+tan(x))=(1-sin(2x))/(cos(2x))prove csch^2(x)=coth^2(x)-1prove (tan(y))/(csc(y))= 1/(cos(y))-1/(sec(y))

Frequently Asked Questions (FAQ)

  • Is cos(6x)=2cos^2(3x)-1 ?

    The answer to whether cos(6x)=2cos^2(3x)-1 is True