y" + 2y' + y = te-t (s² + 2s + 1) y(s) 1 1)y(s) = (s² 1 + 2s + 1) y(s) = (s + 1)? (s + 1)* A.) В.) 1 1 (s? + 2s + 1) y(s) = (s² + 2s +1) y(s) : s- 4 (s+1)? (s + 1)² C.) D.)

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