Which of the following functions can be set as N so that the differential equation (22" + e-1/v) dx + N (x, y) dy = 0 is exact? A) N (x, y) = +2" – e-/y – 3 B) N (x, y) = 2" In 2 – In rev² C) N (x, y)...

Extracted text: Which of the following functions can be set as N so that the differential equation (22" + e-1/v) dx + N (x, y) dy = 0 is exact? A) N (x, y) = +2" – e-/y – 3 B) N (x, y) = 2" In 2 – In rev² C) N (x, y) = x²24 – e-/y D) N (x, y) = 2x²2" + e¬1/v – 4 E) N (x, y) = 2²2" – e-1/y – Ing