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+1 vote
2.3k views
in Applications of Differential Calculus by (46.9k points)
closed by

The point of inflection of the curve y = x4 is at … 

(a) x = 0 

(b) x = 3 

(c) x = 12 

(c) no where

1 Answer

+1 vote
by (49.1k points)
selected by
 
Best answer

(a) x = 0

Given y = x4

dy/dx = 4x3

d2y/dx2 = 12x2 = 0 

x2 = 0

x = 0

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