Evaluate the following improper integral. If it diverges, then type 'DNE. Otherwise, find its exact value. 13 a2 In a dx =

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A: ∫tn dt = tn+1n+1+C ∫cos(at) dt =1asin(at)+C

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A: This question can be solved by using the concept of existence of limit at a given point.

Q: 16. The special integrating factor of y?dx + (3xy + y² – 1)dy = 0 is: a. e3y C. Y b. Зу d. y-3

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