Qualification > Math

I need help on question no. 2 Oct/Nov 2009 pure math 3

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astarmathsandphysics:
How did I miss that? When I get home.

astarmathsandphysics:
Trial and error. The root is between 3 an 4
f(3)<0 f(4)>0
so between 3 and 4 there is a sign change and a root.

osmosis:
ok....thank you so much! :)

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