Solution
prove
Solution
Solution steps
Show that the two sides are not equal
For plug in
For plug in
Refine to a decimal form
Refine to a decimal form
The two sides are not equal
Popular Examples
prove tan(x)sin(2x)=2sin^2(x)prove cot(x)tan(x)-(sin^2(x)+cos^2(x))=0prove cos(x)sec(x)=tan(x)cot(x)prove (csc(x))/(1+cot^2(x))=sin(x)prove csc(pi/2-x)cot(x)=csc(x)
Frequently Asked Questions (FAQ)
Is cos(a+b)cos(a-b)=cos^2(a)-cos^2(b) ?
The answer to whether cos(a+b)cos(a-b)=cos^2(a)-cos^2(b) is False