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Question

A point equidistant from the line 4x+3y+10=0, 5x12y+26=0 and 7x+24y50=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 coordinates 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 distance 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:

Hence, the correct answer is option (c).


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