1.

Answer these questions based on the following informations There are n points on a plane, out of which m are collinear points, such that mltn Find the maximum number of quadrilaterals formed by joining them.

Answer»

`^mC_4+^nC_4`
`^nC_4+^mC_4`
`^nC_4-^mC_4`
`^nC_4-^mC_4+1`

ANSWER :C


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