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Solve the differential equations below by choosing an appropriate method. (a) t2dy dt = 3t3 − 4y (b) d2y dt2 − 14dy dt + 49y = 0 (c) d2y dt2 + 64y = 0 (d) d3y dt3 − 3d2y dt − 45dy dt − 81y = 0

Solve the differential equations below by choosing an appropriate method. (a) t2dy dt = 3t3 − 4y (b) d2y dt2 − 14dy dt + 49y = 0 (c) d2y dt2 + 64y = 0 (d) d3y dt3 − 3d2y dt − 45dy dt − 81y = 0

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Solve the differential equations below by choosing an appropriate method. (a) t 2 d y d t = 3 t 3 − 4 y (b) d 2 y d t 2 − 14 d y d t + 49 y = 0 (c) d 2 y d t 2 + 64 y = 0 (d) d 3 y d t 3 − 3 d 2 y d t − 45 d y d t − 81 y = 0

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