Solution
Solution
+1
Solution steps
Use the following trivial identity:
Use the following trivial identity:
Simplify
Popular Examples
1/4 (-cos(16)+1)cos((2pi)/5)cos(pi/(15))+sin((2pi)/5)sin(pi/(15))12sin(180)arctan(11/16)sqrt(95^2+68^2-2(95)(68)cos(96))
Frequently Asked Questions (FAQ)
What is the value of sqrt(1-cos^2(120)-cos^2(60)) ?
The value of sqrt(1-cos^2(120)-cos^2(60)) is sqrt(1/2)