The full step-by-step solution to problem: 1 from chapter: 4.1 was answered by , our top Math solution expert on 03/13/18, 08:19PM. This textbook survival guide was created for the textbook: Elementary Differential Equations, edition: 10. The answer to “In each of 1 through 6, determine intervals in which solutions are sure to exist.. y(4) + 4y + 3y = t” is broken down into a number of easy to follow steps, and 22 words. Elementary Differential Equations was written by and is associated to the ISBN: 9780470458327. Since the solution to 1 from 4.1 chapter was answered, more than 207 students have viewed the full step-by-step answer. This full solution covers the following key subjects: . This expansive textbook survival guide covers 61 chapters, and 1655 solutions.