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Thanks Adwin! It certainly doesnt look like O Level syllabus

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Is this really O Level Mathematics? I don’t remember my O Levels having questions of this caliber! LOL!

For part ii), I think there’s a typo in the question. It can only be solvable (showable) only if  (3/2 – 3) < d/dx < 0

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yea, it’s O Level, one of the challenging questions. haha. oh, how do you show (3/2 – 3) < d/dx < 0?

I could only managed to show is x = -sqrt (3), then d/dx = (sqrt 3)/2 – 3. Not sure how to show if x < -sqrt (3), then d/dx < that value. 

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Thanks Adwin! It certainly doesnt look like O Level syllabus

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