Edexcel AS Paper 1 Specimen — Question 10

Exam BoardEdexcel
ModuleAS Paper 1 (AS Paper 1)
SessionSpecimen
TopicQuadratic Functions
  1. The equation \(k x ^ { 2 } + 4 k x + 3 = 0\), where \(k\) is a constant, has no real roots.
Prove that $$0 \leqslant k < \frac { 3 } { 4 }$$
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