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Question
Find the distances between the following point.
P(–6, –3), Q(–1, 9)
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Solution
P(–6, –3), Q(–1, 9)
\[PQ = \sqrt{\left( - 6 - \left( - 1 \right) \right)^2 + \left( - 3 - 9 \right)^2}\]
\[ = \sqrt{25 + 144}\]
\[ = \sqrt{169}\]
\[ = 13\]
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