Solution
Solution
+1
Solution steps
Rewrite using trig identities:
Use the following trivial identity:
Simplify
Popular Examples
3cos^2(pi/4)cos(pi/(12))+cos((7pi)/(12))(2sqrt(5))cos(26.5650400000000…)tan(20)tan(40)tan(80)arcsin(-1.98)
Frequently Asked Questions (FAQ)
What is the value of cos^2(22.5) ?
The value of cos^2(22.5) is (2+sqrt(2))/4