Question: Include a complete solution Test I: (50 pts) Test each of the following equations for exactness and solve the equation. The equations that are not

Include a complete solution

Test I: (50 pts) Test each of the following equations for exactness and solve the equation. The equations that are not exact may be solved using different methods: 1. xdx + sin2 ([ydx - xdy] = 0 2. (cos x cosy - cotx)dx - sin x sin y dy = 0 3. y' = cscx + y cot x 4. 2x3y' = y(y2 + 3x2). Solve by two methods

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