1. [15] a) Show that the differential equation (xy + y2 + x²)dx-x²dy = 0 is not exact. I b) Use the substitution y=xv to
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1. [15] a) Show that the differential equation (xy + y2 + x²)dx-x²dy = 0 is not exact. I b) Use the substitution y=xv to
1. [15] a) Show that the differential equation (xy + y2 + x²)dx-x²dy = 0 is not exact. I b) Use the substitution y=xv to rewrite the differential equation in separable form and solve. Give an implicit solution.
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