Thursday
October 30, 2014

Homework Help: calculus

Posted by Riley on Monday, April 6, 2009 at 9:44am.

(a) find the intervals on which f is incrs or decrs.

(b) find the local min/max values of f.

(c) find the intervals of concavity and the inflection points.

f(x)=(lnx)/sqrtx


I took the derivative and got
2-lnx/2x^3/2

take the values when f'(x) >0 I get

2-lnx > 0
2 > lnx
now how do get x by itself on one side?

(b) how do I got about this?

(c) take f''(x, set numerator equal to zero and solve but how?

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