critical pts.

The number of critical pts of the function --
f(x)=|x-1||x-2| is _____.

I got 2,but thats not the ans.

6 Answers

for x<1 f(x)=(x-1)(x-2)
for 1<x<2 f(x)=-(x-1)(x-2)
for x>2 f(x)=(x-1)(x-2)

ans should be 4.....is it???

The critical pts are 3.
1,2 and 3/2

yes injun_joe ur right !!

yes injun_joe ur right !! :)

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