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PROBLEM 3 (1 + t) exp(-) and y(t) = -t exp(-) is a solution to the system Confirm that x(t) y=x-2y PROBLEM 4: tan(t Given y
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x(t) = (+t)e Aolution of the we hawe to contirm that t is amd t) -t e 1--2 -t xce)= (It t)e and t) Let - te-t -t x= -(1+t)e +

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