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Pure maths 1 problem

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Freaked12:

--- Quote from: nid404 on May 07, 2010, 06:36:38 pm ---max value of cos x=1

since max value of f(x)=10

a+b=10 (cos x=1)

least value of cos x=-1

since min value  of f(x)=-2
a-b=-2

--- End quote ---

Jesus!
feeling embarrased for asking this question.

Thankyou anyways

nid404:
lol...happens...

You're welcome :)

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