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Answer these questions based on the foll...

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 straight lines formed by joining them.

A

`^(n-m)C_2+1`

B

`^nC_2-^mC_2-1`

C

`^(n-m)C_2-1`

D

`^nC_2-^mC_2+1`

Text Solution

Verified by Experts

The correct Answer is:
D
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