Solution
Solution
Solution steps
Manipulating left side
Expand
Manipulating right side
Expand
We showed that the two sides could take the same form
Popular Examples
prove tan^4(x)=sec^4(x)-sec^2(x)prove sin^2(x)cos(x)-cos(x)=-cos^3(x)prove cot(x)=(-cos^2(x))/((sin(x)+1)^2)prove (1-tan^2(θ))=sec^2(θ)-4tan^2(θ)prove sin(x)(sin(2x))=sin(3x)
Frequently Asked Questions (FAQ)
Is cos(330)=1-2sin^2(165) ?
The answer to whether cos(330)=1-2sin^2(165) is True