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May 22, 2013

# Homework Help: Calculus

Posted by Jody on Sunday, June 24, 2012 at 5:25pm.

Apply mean value theorem f(x)=7-(6/x) on [1,6]

• Calculus - Steve, Monday, June 25, 2012 at 10:53am

f(1) = 1
f(6) = 6

[f(6)-f(1)]/(6-1) = 5/5 = 1

f'(x) = 6/x^2
1 = 6/x^2 ==> x = √6

so, since 1 < √6 < 6, the MVT applies

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