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Let V(x,y,z) =xy + yz + zx, x,y,z in R. ...

Let V(x,y,z) =xy + yz + zx, `x,y,z in R`. Find the differential dV.

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The correct Answer is:
`therefore dV = ( y + z) dx + (z + x) dy + (y + x) dz`
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