Download the Guru IA app
Android and iOS
GERMANA
cos(45° + 60°) = cos 45° · cos 60° - sen 45° · sen 60°
Ask a question and receive an answer instantly
Send your questions through the App
Scan the QR Code and download for free
Do you prefer an expert tutor to solve your activity?
- Receive your completed work by the deadline
- Chat with the tutor.
- 7-day error guarantee