Section 7.7

# Section 7.7 - Section 7.7(Homework 1[SCalcCC2 7.7.04...

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Section 7.7 (Homework) 1. [SCalcCC2 7.7.04.] 1.5/1.5 points Last Response | Show Details All Responses Notes Solve the differential equation. 2 y '' - y ' - y = 0 (a) Find the auxiliary equation using the variable r . 2r^2-r-1 2r^2 - r - 1 = 0 (b) Determine the general solution. (_) (_) (_) (_) (o) (o) (_) (_) (_) (_) none of these 2. [SCalcCC2 7.7.06.] 1.5/1.5 points Last Response | Show Details All Responses Notes Solve the differential equation. 5 y '' = 7 y ' (a) Find the auxiliary equation using the variable r . 5r^2-7r 5r^2-7r

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= 0 (b) Determine the general solution. (_) (_) (_) (_) (_) (_) (_) (_) none of these (o) (o) 3. [SCalcCC2 7.7.08.] 1.5/1.5 points Last Response | Show Details All Responses Notes Solve the differential equation. 9 y '' + 12 y ' + 4 y = 0 (a) Find the auxiliary equation using the variable r . 9r^2+12r+4 9r^2 + 12r + 4 = 0 (b) Determine the general solution. (_) (_) none of these (_) (_) (_) (_) (o) (o) (_) (_)
4. [SCalcCC2 7.7.10.] 1.5/1.5 points Last Response |

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## This note was uploaded on 10/28/2010 for the course MA MA 241 taught by Professor Lesliekurtz during the Spring '10 term at N.C. State.

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Section 7.7 - Section 7.7(Homework 1[SCalcCC2 7.7.04...

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