2020 NOV Afternoon P1 Q5
2020 NOV Afternoon P1 Q5
6 marks
Let \(f(x) = -x^2 + 4x + 5\) amd \(g(x) = -f(x) + k\).
Find the values of \(k\) so that \(g(x) = 0\) has no real roots.[6]
Solution:
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Answer:\(k>9\).
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