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Unformatted text preview: a 2 + b 2 . 18.3: 5, 11, 13, 15, 17, 24*, 26*, 28*, 30 Answer to 24: f x , y , z ( ) = k 2 x 2 + y 2 + z 2 ( ) + K . Hint on 26, 28: Just give short arguments! On 28, assume that the orbit is circular and that Earth is perfectly spherical. Look at 19, 20, 25, 27. THERES MORE ON THE BACK!! 18.4: 1, 3, 5, 10, 11, 13, 15 18.5: 3, 11*, 13*, 15, 19 Note on 11 and 13 : Techniques for evaluating improper integrals should be used here. Look at 20: The result here is a special case of Gausss Law, a very important law in electromagnetism. For more info, see pp.10091010. Look at 21. 18.6: 5, Understand the Example in the Additional (Extra) Notes. 18.7: 13, Know the relevant formulas, as well as the comments on conservative vector fields on Notes 18.7.4. (You may skip the comments on simply connected regions.)...
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 Spring '11
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 Math, Calculus

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