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secondary 3 | A Maths
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Koh Yun Zhen
Koh Yun Zhen

secondary 3 chevron_right A Maths

The qns is 16(ii)

Date Posted: 7 years ago
Views: 481

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Bryant Lam Hong Sheng
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Eugene See
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The way you find D is wrong. c is (k - 3) and the coefficient of x is k, not (-3 + k).

Then we need to prove that D is more than or equal to 0 for all real values of k