MAT 239 Midterm: MAT 239 NAU sMidterm2
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Exam 2, on webwork sets 9-13 (chapters 3 and 4, except 3. 6, 4. 4) is scheduled for monday, november 2. One page of notes with writing on both sides is allowed. Every quadratic equation you need to solve has integer roots, or roots of the form a + ib, where a and b are integers. If you don"t show your work, or you have errors in the work, i may take o points even if you have the correct answer: solve the initial value problem (ivp) for y(t): y . 3y + 2y = 0, y(0) = 1, y (0) = 2: (a) find a particular solution to y + y = 2 cos(t). (b) write the particular solution in the form yp = r cos( t ). Give exact values of r and , not calculator approximations. In this problem, l is some xed linear operator and g(t) is some xed function,
