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Verity that y=a/x+b is a solution of the...

Verity that `y=a/x+b` is a solution of the differential equation `(d^2y)/(dx^2)+2/x((dy)/(dx))=0.`

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Given,

`y=a/x+b`

Differentiating w.r.t. `x`

`y'=(-a)/(x^2)`` \ \ \ ...(i)`

Differentiating w.r.t. `x`

`y''=(2a)/(x^3)`` \ \ \ ...(ii)`


Multiplying `(a)/(x)` to `(i)` and adding with `(ii)`

`=(a)/(x)y'+y''`

...
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