Solution
Solution
Solution steps
Manipulating left side
Express with sin, cos
Rewrite using trig identities
We showed that the two sides could take the same form
Popular Examples
prove cot^2(x)-1=tan^2(x)prove sin^2(θ)+1=-1-cos^2(x)prove cos(θ)=sqrt(1-sin^2(θ))prove (sec(θ)-cos(θ))/(tan(θ))=sin(θ)prove 2sin((3pi)/2)=-2+cos((3pi)/2)
Frequently Asked Questions (FAQ)
Is (1-tan^2(x))*cos^2(x)=cos(2x) ?
The answer to whether (1-tan^2(x))*cos^2(x)=cos(2x) is True