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If f(x)=|x|+|x-1|+|x-2|, then...

If `f(x)=|x|+|x-1|+|x-2|,` then

A

a)f(x) has minima at x=1

B

b)f(x) has maxima x=1

C

c)f(x) has neither maxima nor minima at x=1

D

d)none of the above

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A
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