Solution
prove
Solution
Solution steps
Use the Pythagorean identity:
Popular Examples
prove sin^2(csc^2(x)-1)=cos^2(x)prove sin^2(x)-sin^4(x)=1-2sin^2(x)prove 1/2 sin(2x)=sin(x)cos(x)prove 3sin(x)=cos(x)cot(x)prove (sec(α)+csc(α))(cos(α)-sin(α))=cot(α)-tan(α)
Frequently Asked Questions (FAQ)
Is cos^2(u)=1-sin^2(u) ?
The answer to whether cos^2(u)=1-sin^2(u) is True