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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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