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10 January, 02:41

A line passing (a, 3) and (5,5) is perpendicular to a line passing through (0,0) and (1, a) Find the value of a.

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  1. 10 January, 03:28
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    a = - 5

    Step-by-step explanation:

    (5 - 3) / (5 - a)

    2 / (5 - a)

    perpendicular of 2 / (5 - a) = - (5 - a) / 2

    (a - 0) / (1 - 0) = - (5 - a) / 2

    a/1 = - (5 - a) / 2

    2a = - 5 + a

    a = - 5
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