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The equation (x^(2))/(10-lamda)+(y^(2))/...

The equation `(x^(2))/(10-lamda)+(y^(2))/(4-lamda)=1` represents an ellipse if

A

`lamdalt4`

B

`lamdagt4`

C

`lamdalt4lt10`

D

`lamdagt10`

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