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What is the distance between z 1 = 2 + 9i and z 2 = 2 - 4i?

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  1. 14 May, 11:11
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    Distance formula: SR (A^2+B^2)

    SR [ (2+9i) ^2 + (2-4i) ^2] =

    SR [4 + 18i + 81i^2 + 4 - 8i + 16i^2] =

    SR [8 + 10i + 97i^2]
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