Solution
Solution
+1
Solution steps
Rewrite using trig identities:
Use the following trivial identity:
Popular Examples
Frequently Asked Questions (FAQ)
What is the value of cos((11pi)/(12))cos((7pi)/(12))+sin((11pi)/(12))sin((7pi)/(12)) ?
The value of cos((11pi)/(12))cos((7pi)/(12))+sin((11pi)/(12))sin((7pi)/(12)) is 1/2