Penjelasan dengan langkah-langkah:
y = cos (3x + 9)
y = cos ß → y' = – sin ß
ß = 3x + 9 → ß' = 3
y' = – sin (3x + 9) × 3
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Penjelasan dengan langkah-langkah:
y = cos (3x + 9)
y = cos ß → y' = – sin ß
ß = 3x + 9 → ß' = 3
y' = – sin (3x + 9) × 3
y' = – 3 sin (3x + 9)