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Mathematics

Point P(x, y) is equidistant from points A(7, 1) and B(3, 5).

Statement 1: x = 7+32\dfrac{7 + 3}{2} and y = 1+52\dfrac{1 + 5}{2}.

Statement 2: (x - 7)2 + (y - 1)2 = (x - 3)2 + (y - 5)2.

  1. Both the statement are true.

  2. Both the statement are false.

  3. Statement 1 is true, and statement 2 is false.

  4. Statement 1 is false, and statement 2 is true.

Section Formula

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Answer

It is given that point P(x, y) is equidistant from points A(7, 1) and B(3, 5).

If a point is equidistant from two points it is not necessary that it will be the mid-point of the two points, sp we cannot use mid-point formula to find the co-ordinates of P.

So, statement 1 is false.

Using distance formula,

Distance between two points = (x2x1)2+(y2y1)2\sqrt{(x2 - x1)^2 + (y2 - y1)^2}

⇒ PA = PB

(x7)2+(y1)2=(x3)2+(y5)2\Rightarrow \sqrt{(x - 7)^2 + (y - 1)^2} = \sqrt{(x - 3)^2 + (y - 5)^2}

⇒ (x - 7)2 + (y - 1)2 = (x - 3)2 + (y - 5)2

So, statement 2 is true.

Hence, option 4 is the correct option.

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