Question: 1. Determine whether the following differential equations are exact (a) (x+ ) + (u+ +) - . ry? dy dr (b) (1+2xe) dx +e

1. Determine whether the following differential equations are exact (a) (x+ )

1. Determine whether the following differential equations are exact (a) (x+ ) + (u+ +) - . ry? dy dr (b) (1+2xe) dx +e (1-) dy = 0. 1+ 2xe dx + e Hence find the integrating factor for non-exact equation.

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