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In Exercises 7–29 use variation of parameters to find a particular solution, given the solutions y1,...

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Advance Math

In Exercises 7–29 use variation of parameters to find aparticular solution, given the solutions y1, y2 of thecomplementary equation.

1.) 4xy'' + 2y' + y = sin sqrt(x); y1 = cos sqrt(x), y2 = sinsqrt(x)

2.)  x^2y''? 2xy' + (x^2 + 2)y = x^3 cos x; y1 = x cosx, y2 = x sinx

Please help!!! with explanation thank you very much only thesetwo excersices from homework.

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