1.

`(dy)/(dx)+(y)/(x)=x^(2)`

Answer» `(dy)/(dx)+(y)/(x)=x^(2)`
यहाँ, `P=(1)/(x), Q=x^(2)`
`I.F.=e^(intPdx)=e^(int(1)/(x)dx)=e^(logx)=x`
और व्यापक हल :
`y(x)=intx^(2)(x)dx+c=intx^(3)dx+c`
`implies xy=(x^(4))/(4)+c`


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