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

Name: Buktikan bahwa: cos(2a)=(1-tan^2(a))/(1+tan^2(a))
Uploaded: 2024-04-08T18:42:00.000Z
Duration: PT2M38.6133S
Description: Buktikan bahwa: cos(2a)=(1-tan^2(a))/(1+tan^2(a))