4. If y(x) and y(x) are two solutions of the Sturm-Liouville system |p(x) + Q(x) +...

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4. If y(x) and y(x) are two solutions of the Sturm-Liouville system |p(x) + Q(x) + 21(x) y =0 13 dx (a < x < b) and both ym(x) and y(x) are continuous and differentiable, show that p(x) * W[ym(x), Yn(x)] is a constant. Note: W is the Wronskian. (25%) 4. If y(x) and y(x) are two solutions of the Sturm-Liouville system |p(x) + Q(x) + 21(x) y =0 13 dx (a < x < b) and both ym(x) and y(x) are continuous and differentiable, show that p(x) * W[ym(x), Yn(x)] is a constant. Note: W is the Wronskian. (25%)