MATH 286 Midterm: MATH 286 UIUC midtermsolutions_1
31 Jan 2019
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Math 286 section x1 introduction to di erential equations plus. Instructions: this exam is 60 minutes long. No personal aids or calculators are permitted: answer all questions in the space provided. If you require more space to write your answer, you may continue on the back of the page. There is a blank page at the end of the exam for rough work: explain your work! Little or no points will be given for a correct answer with no explanation of how you got it. If you use a theorem to answer a question, indicate which theorem you are using, and explain why the hypotheses of the theorem are valid: good luck! Please note: proctors are unable to respond to queries about the interpretation of exam questions. Do your best to answer exam questions as written. Ly = y(4) + 3y 4y = 0. (a) (3 points) let y1(x), y2(x), y3(x), y4(x) be four solutions to the above ode.
