lab6_f11 - Math 116 - Lab 6 - Fall 2011. Second...

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Unformatted text preview: Math 116 - Lab 6 - Fall 2011. Second derivatives; concavity; curve sketching; optimization problems (Sections 4.3, 4.4, 4.6 and 4.7 of L/G). You are to provide full solutions to the following problems. You are allowed to collaborate with your classmates, use your notes and textbook and ask the TA for guidance. Direct copying of solutions is not encouraged, nor is it allowed or ethical. Last name: First name: Student number: 1 Math 116 - Lab 6 - Fall 2011. Student number: Second derivatives; concavity; curve sketching; optimization problems (Sections 4.3, 4.4, 4.6 and 4.7 of L/G). 1. In each of the following, calculate f 00 ( x ) and determine whether the graph of f ( x ) is concave up or concave down at x : a) f ( x ) = sin(2 x ); x = / 4, b) f ( x ) = e- 5 x ; x = 1, c) f ( x ) = ln(5 x ); x = 12. 2. In each of the following, find the second order critical points of f ( x ) and determine which ones (if any) are inflection points: a) f ( x ) = x ln( x ), b) f ( x ) = cosh( x ), c) f (...
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lab6_f11 - Math 116 - Lab 6 - Fall 2011. Second...

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