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CAT-2004-Previous Years Paper

Question
18 out of 35
 

Let f(x) = ax2 b |x|, where a and b are constants. Then at x = 0, f(x) is



A maximized whenever a > 0, b > 0

B maximized whenever a > 0, b < 0

C minimized whenever a > 0, b > 0

D minimized whenever a > 0, b < 0

Ans. D

When a > 0, b < 0,ax2and b |x| are non negative for all x, i.e., ax2b|x| 0 ax2 b |x| is minimum at x = O when a > 0, b < 0.

CAT-2004-Previous Years Paper Flashcard List

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