Buktikan bahwa cos306 + cos234 + cos162 + cos18 = 0.

Name: Buktikan bahwa cos306 + cos234 + cos162 + cos18 = 0.
Uploaded: 2024-02-03T21:17:00.000Z
Duration: PT2M59.49S
Description: Buktikan bahwa cos306 + cos234 + cos162 + cos18 = 0.