Slution: Which of the following equations is an exact DE?

Which of the following equations is an exact DE? How to determine the exact differential equation?

Which of the following equations is an exact DE?

Problem Statement:

Which of the following equations is an exact DE?

A. (x2 + 1) dx – xy dy = 0

B. x dy + (3x – 2y) dx = 0

C. 2xy dx + (2 + x2) dy = 0

D. x2y dy – y dx = 0

Problem Answer:

The correct answer is C. 2xy dx + (2 + x2) dy = 0.

Solution:

Online Questions and Answers in Differential Equations


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