$$\(A\)$$ is the point $$\((5,-5)\)$$ and $$\(B\)$$ is the point $$\((9,3)\)$$. Find the length of $$\(A B\)$$.
Exam No：0580_s21_qp_21 Year：2021 Question No：9(b)
Answer:
\(8.94\) or \(8.944 \ldots\)
Knowledge points:
E1.3 Calculate with squares, square roots, cubes and cube roots and other powers and roots of numbers.
E3.3 Calculate the length and the coordinates of the midpoint of a straight line from the coordinates of its end points.
Solution:
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