Sederhanakan cos(pi/6+alpha)+cos(pi/6-alpha)

Name: Sederhanakan cos(pi/6+alpha)+cos(pi/6-alpha)
Uploaded: 2024-05-06T17:44:08.000Z
Duration: PT2M39.667S
Description: Sederhanakan cos(pi/6+alpha)+cos(pi/6-alpha)