Tunjukkan bahwa:2 cos^2 30 = cos 60+1

Name: Tunjukkan bahwa:2 cos^2 30 = cos 60+1
Uploaded: 2024-02-03T05:46:43
Duration: PT2M0.667S
Description: Tunjukkan bahwa:2 cos^2 30 = cos 60+1