Unformatted text preview: a. 3 x ′ ′ ′ y + 4 y 4 = cos x linear nonlinear b. x ′ ′ y + 4 y = linear nonlinear c. 3 x ′ ′ ′ y + 4 y (4) = cos x linear nonlinear d. 3 x 2 ′ ′ ′ y + 4 y = x linear nonlinear 4. Write each differential equation in normal form. a. 3 x ′ ′ ′ y + 4 y 4 = cos x ________________________________ b. x ′ ′ y + 4 y = ________________________________ 5. Write the equation for Newton’s Law of Heating and Cooling, identifying each variable....
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 Spring '10
 Kidnan
 Derivative, linear linear

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