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Then,aI -1 and b-V2. and the general solutio' is Using a calculator, we have y 2nd +3y-Day) ENTER up aow 2nd tigh a EXAMPLE Solve the diflerential equation y"+9y solution is The aunilary equation is㎡+ 9-0.Som-t3. Since "-Oandb-3,he pren! sin 3+Acos 3 Exercises 12.2 Solve each differential equation dr dx drdt 12. Dy+ 16y- 13.0 dx dr Find the particular solation of each differential equation satisgying the given condivions 501 SECTION 122 Reperuted Rots and Conplex Roos