Buktikan: (1-tan^2 (tetha/2))/(1+tan^2 (tetha/2))=cos theta

Name: Buktikan: (1-tan^2 (tetha/2))/(1+tan^2 (tetha/2))=cos theta
Uploaded: 2024-04-16T23:04:39.000Z
Duration: PT2M21.871S
Description: Buktikan: (1-tan^2 (tetha/2))/(1+tan^2 (tetha/2))=cos theta