Solution
Solution
Solution steps
Manipulating left side
Express with sin, cos
We showed that the two sides could take the same form
Popular Examples
prove cos(4x)cos(x)-sin(4x)-sin(x)=0prove 2cos(2x)=2sin(x^2)-1prove sec(θ)+1=(cos(θ)+1)/(cos(θ))prove 2=(csc^2(x))(1-cos(2x))prove 9sin(7pi-x)=9sin(x)
Frequently Asked Questions (FAQ)
Is (sec^2(y))= 1/(cos^2(y)) ?
The answer to whether (sec^2(y))= 1/(cos^2(y)) is True