Buktikanlah identitas trigonometri berikut:

Name: Buktikanlah identitas trigonometri berikut:
Uploaded: 2023-11-24T13:12:00
Duration: PT1M4.17067S
Description: Buktikanlah identitas trigonometri berikut: (cosx+sinx)(cosx-sinx)=1-2sin^2x