Buktikan identitas (sin x+sin y)/(cos x+cos y)=tan((x+y)/2)

Name: Buktikan identitas (sin x+sin y)/(cos x+cos y)=tan((x+y)/2)
Uploaded: 2024-01-24T10:29:08.000Z
Duration: PT1M4.064S
Description: Buktikan identitas (sin x+sin y)/(cos x+cos y)=tan((x+y)/2)