Solution
Solution
Solution steps
Use the following trivial identity:
Simplify
Popular Examples
(tan(19)+tan(47))/(1-tan(19)tan(47))arctan((-3)/5)cos(140)cos(20)-sin(140)sin(20)-3sin(pi/4)tan(arcsin(0))
Frequently Asked Questions (FAQ)
What is the value of 2cos^2(pi/2) ?
The value of 2cos^2(pi/2) is 0