# HW_06 - Assignment Previewer Page 1 of 8 HW 06(1290937 Due...

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HW 06 (1290937) Due: Thu Jun 17 2010 11:59 PM CDT Question 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Description 15.3 Partial derivatives 15.4 Tangent planes and linear approximations SCalc6 15.3.007. [866743] 1. Question Details Determine the sign of the partial derivative for the function f whose graph is shown below. Page 1 of 8 Assignment Previewer 6/9/2010 ..

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(a) f xx (- x 0 , y 0 ) positive negative (b) f yy (- x 0 , y 0 ) positive negative Page 2 of 8 Assignment Previewer 6/9/2010 ..
SCalc6 15.3.011. [832400] 2. Question Details If f ( x, y ) = 38 - 3 x 2 - y 2 , find f x ( -4 , -5 ) and f y ( -4 , -5 ) and interpret these numbers as slopes. f x ( -4 , -5 ) = Enter a number. 24 f y ( -4 , -5 ) = Enter a number. 10 Illustrate with either hand-drawn sketches or computer plots. (Do this on paper. Your instructor may ask you to turn in this work.) SCalc6 15.3.016. [1281035] 3. Question Details Find the first partial derivatives of the function. f ( x, y ) = x 9 y 3 + 3 x 7 y f x ( x, y ) = f y ( x, y ) = SCalc6 15.3.020. [1281802] 4. Question Details Find the first partial derivatives of the function. z = tan( xy ) = = SCalc6 15.3.025. [1281494] 5. Question Details Page 3 of 8 Assignment Previewer 6/9/2010 ..

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Find the first partial derivatives of the function. f
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HW_06 - Assignment Previewer Page 1 of 8 HW 06(1290937 Due...

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