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There are n points in a plane of which '...

There are n points in a plane of which 'p' points are collinear. How many lines can be formed from these points

A

`""^((n-p))C_(2)`

B

`""^(n)C_(2)-""^(p)C_(2)`

C

`""^(n)C_(2)-""^(p)C_(2)+1`

D

`""^(n)C_(2)-""^(p) C_(2)-1`

Text Solution

Verified by Experts

The correct Answer is:
C
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