Buktikan bahwa cos a=(1-tan^2 1/2 a)/(1+tan^2 1/2 a )

Name: Buktikan bahwa cos a=(1-tan^2 1/2 a)/(1+tan^2 1/2 a )
Uploaded: 2024-05-19T07:31:43
Duration: PT3M22.934S
Description: Buktikan bahwa cos a=(1-tan^2 1/2 a)/(1+tan^2 1/2 a )