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Find the distance between P (x(1), y(1))...

Find the distance between `P (x_(1), y_(1)) " and " Q (x_(2), y_(2))` when : (i) PQ is parallel to the y-axis, (ii) PQ is parallel to the x-axis.

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The correct Answer is:
`(i) | y_(2) - y_(1)|, (ii) |x_(2) - x_(1)|`
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