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In Exercises 1—4, a harmonic oscillator equation for y(t) is given.
(a) Using HPGSystemSolver, sketch the associated direction field.
(b) Using the guess-and-test method described in this section, find two nonzero solutions that are not multiples of one another.
(c) For each solution, plot both its solution curve in the yv-plane and its x(t)- and v(t)-graphs.
2.
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Differential Equations
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