In class part exam 2

In class part exam 2 - Fall 2008 Math 285 Exam 2 Name: If...

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Fall 2008 Math 285 Exam 2 Name: If you cannot complete a problem (perhaps because you forgot a formula) but you think you know how, please describe. Correct methods will receive partial credits. Table 4.1 is on page 4. 1. Verify that the set of functions 11 (x) = eX/2 and h (x) = xex/2 is linearly independent on the interval (-00,00). \ ,'. r _ -; \i - TO 2. Find the following matrices if they are defined. (a) The product (~ ~2) (!5):::' (L' h IJ· (-'») \ ~ 1 ' 3 ~ (-l).( -5'y • I 1
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3. An object weighing 4 pounds is attached to a spring whose constant is 2 lb/ft. The medium offers a damping force that is numerically equal tojhe instantaneous velocity. =) The object is initially released from a point 1 foot above the equilibrium position with a downward velocity of 8 ft/s. Please use 9 = 32ft/s2. (a) Find the equation of motion (i.e. solve the IVP), starting with the equation of form mx" + {3x' + kx = o. \JV""
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This note was uploaded on 09/19/2009 for the course MATH 285 taught by Professor Satoko during the Spring '08 term at Nevada.

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In class part exam 2 - Fall 2008 Math 285 Exam 2 Name: If...

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