Solution
prove
Solution
Solution steps
Manipulating left side
Rewrite using trig identities
Rewrite using trig identities
Add similar elements:
We showed that the two sides could take the same form
Popular Examples
prove ((tan^2(x)+1))/(sec(x))=sec(x)prove prove csc^2(x)cos(2x)=1-tan^2(x)prove prove (2tan(θ))/(1-tan^2(θ))=tan(2θ)prove prove cos(x)sin(x)= 1/2 sin(2x)prove prove (1+tan(x))/(1-tan(x))=tan(x+pi/4)prove
Frequently Asked Questions (FAQ)
Is cos(20pi+x)+cos(21pi-x)=0 ?
The answer to whether cos(20pi+x)+cos(21pi-x)=0 is True