If y 3 sin -4x dy dx is - JAMB Mathematics 2003 Question
If y = 3 sin(-4x), dy/dx is
A
12x cos (4x)
B
-12x cos (-4x)
C
-12 cos (-4x)
D
12 sin (-4x)
correct option: c
y = 3 sin(-4x)
dy/dx = 3x - 4 cos (-4x)
= -12 cos (-4x)
dy/dx = 3x - 4 cos (-4x)
= -12 cos (-4x)
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