Apakah derivatif y = 3sin (x) - dosa (3x)?

Apakah derivatif y = 3sin (x) - dosa (3x)?
Anonim

# y = 3sin (x) -sin (3x) #

# y '= 3cosx- cos (3x) * 3 # #color (putih) (ttttt # # "aturan aturan rantai kepada" dosa (3x) #

# y '= 3 (cosx-cos3x) #

Jawapan:

# dy / dx = 3cosx-3cos3x #

Penjelasan:

# "membezakan" sin3x "menggunakan aturan rantai" warna (biru) "#"

# "Diberikan" y = f (g (x)) "kemudian" #

# dy / dx = f '(g (x)) xxg' (x) larrcolor (biru) "aturan rantai"

# y = 3sinx-sin3x #

# rArrdy / dx = 3cosx-cos3x xxd / dx (3x) #

#color (putih) (rArrdy / dx) = 3cosx-3cos3x #