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2 December, 07:32

Determine all values of k for which the roots of the equation x^2-6x+k=0 are complex

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  1. 2 December, 07:57
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    Complex roots occur when b^2 - 4ac is negative.

    So we have (-6) ^2 - 4.1. k < 0

    -4k < - 36

    k > 9
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