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OpenStudy (anonymous):
Suppose p and q are continuous on open interval I, and y=y_1+iy_2 is a complex-valued function and a solution of y" + p(t)y' + q(t)y = 0, where y_1 and y_2 are real valued functions. Show that y_1 and y_2 are also solutions of y" + p(t)y' + q(t)y = 0.
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