Find the derivatives of the function y 2x2 2x -... - JAMB Mathematics 2004 Question
Find the derivatives of the function y = 2x2(2x - 1) at the point x = -1
A
18
B
16
C
-4
D
-6
correct option: b
y = 2x2(2x - 1)
y = 4x3 - 2x2
dy/dx = 12x2 - 4x
at x = -1
dy/dx = 12(-1)2 - 4(-1)
= 12 + 4
= 16
y = 4x3 - 2x2
dy/dx = 12x2 - 4x
at x = -1
dy/dx = 12(-1)2 - 4(-1)
= 12 + 4
= 16
Please share this, thanks:
Add your answer
No responses