Solution
Solution
Solution steps
Rewrite using trig identities
Use the following trivial identity
Simplify
Popular Examples
(sin(49))/(sin(30))cos(290)(cos(45)*cos(30)+sin(45)*sin(60))/(tan(30)*tan(60))-4cos(2)371*cos(90-45)+695.1cos(45)
Frequently Asked Questions (FAQ)
What is the value of cos(2((3pi)/4)) ?
The value of cos(2((3pi)/4)) is 0