We've updated our
Privacy Policy effective December 15.
Please read our updated Privacy Policy and tap
Graph
Hide Plot »
Frequently Asked Questions (FAQ)
What is the value of cos((13pi)/(30))cos((4pi)/(15))+sin((13pi)/(30))sin((4pi)/(15)) ?
- The value of cos((13pi)/(30))cos((4pi)/(15))+sin((13pi)/(30))sin((4pi)/(15)) is (sqrt(3))/2