Solution
prove
Solution
Solution steps
Use the Pythagorean identity:
Popular Examples
prove cos(-(xpi)/3)=cos((xpi)/3)prove 3csc(x)-cot(x)=(3-cos(x))/(sin(x))prove 1/(1-sin(θ))=sec^2(θ)+sec(θ)tan(θ)prove 2sin(x)=tan(x)prove cot(x)-1=csc(x)(cos(x)-sin(x))
Frequently Asked Questions (FAQ)
Is (sin^2(x)-1)=-cos^2(x) ?
The answer to whether (sin^2(x)-1)=-cos^2(x) is True