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Unformatted text preview: t [ 3 t cos t + 3 sin t 3] = 3 t cot t + 3 3 csc t . (b) (0 , ) is the largest interval. 5. (a) y 2 = x 3 3 + C . (b) x 2 2 xy + y 2 2 = C , or (ater frst dividing both sides by x y ), y = x + C . 6. (a) Q = 20 1100 Q , or Q + 1 55 Q = 0 ; Q (0) = 100 where Q ( t ) = the amount o blue M&Ms in the vat at time t . (b) Q ( t ) = 100 e t 55 . (c) t = 55 ln( 100 11 ) ....
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This note was uploaded on 07/23/2008 for the course MATH 251 taught by Professor Chezhongyuan during the Spring '08 term at Pennsylvania State University, University Park.
 Spring '08
 CHEZHONGYUAN
 Math, Differential Equations, Equations, Partial Differential Equations

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