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Question

Find the number of points of X-axis which are at a distance 'c' units (c<3) from (2,3).

A
1
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B
2
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C
0
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D
3
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Solution

The correct option is C 0
Distance of 'c' units from (2,3)
Let the no: of points be (x,0)
By distance formula
{(2x)2+(30)2}=c44x+x2+9=cx24x+13=c:c=2,2
There are the points of c,such that when they are applied back to the equations,the number of points will become zero .

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