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 sin(θ/2)=12-20prove (5+5cos(2x))/(sin(2x))=5cot(x)prove cos^3(x)+cos(x)sin^2(x)=cos(x)prove tan((4pi)/3-pi/4)=2-sqrt(3)prove sec(x)+tan(x)= 1/((sec(x)-tan(x)))
Frequently Asked Questions (FAQ)
Is cos(pi-t)=-cos(t) ?
The answer to whether cos(pi-t)=-cos(t) is True