Solution
Solution
Solution steps
Use the following trivial identity:
periodicity table with cycle:
Use the following trivial identity:
periodicity table with cycle:
Simplify
Popular Examples
(18)/(tan(41))arctan(4/24)4(cos((7pi)/4)+isin((7pi)/4))cos(5pi)+isin(5pi)(sin(150)+cot(315))/(sqrt(3)cos(210))
Frequently Asked Questions (FAQ)
What is the value of -cos(pi/2)-cos(0) ?
The value of -cos(pi/2)-cos(0) is -1