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Question

A point equidistant from the lines 4x+3y+10=0,5x−12y+26=0 and 7x+24y−50=0 is

A
(1,1)
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B
(1,1)
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C
(0,0)
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D
(0,1)
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Solution

The correct option is C (0,0)
Let the co-ordinates of the point be (a,b)
Now, the distance of the point (a,b) from 4x+3y+10=0 is given by
∣ ∣4a+3b+1042+32∣ ∣

4a+3b+105

Again, the distance of the point (a,b) from 5x12y+26=0 is given by
∣ ∣ ∣5a12b+2652+(12)2∣ ∣ ∣

5a12b+2613

Again, the distsnce of the point (a,b) from 7x+24y50=0 is given by
∣ ∣ ∣7a+24b5072+(24)2∣ ∣ ∣

7a+24b5025
Now,
4a+3b+105= 5a12b+2613= 7a+24b5025
Only a=0 and b=0 is satisfying the above equation.

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