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