Solution
prove
Solution
Solution steps
Manipulating left side
Rewrite using trig identities
Manipulating right side
Factor
We showed that the two sides could take the same form
Popular Examples
prove tan(pi/4-θ)=(cos(2θ))/(1+sin(2θ))prove prove (1-sin(2x))/(cos(2x))=(cos(2x))/(1+sin(2x))prove prove sec(2pi)=sqrt(1-tan^2(2pi))prove prove tan^2(θ)cos^2(θ)=1-cos^2(θ)prove prove (sin(x)}{sin(2x)}=\frac{sec(x))/2prove
Frequently Asked Questions (FAQ)
Is 2cos(2x)=4cos^2(x)-2 ?
The answer to whether 2cos(2x)=4cos^2(x)-2 is True