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secondary 3 | A Maths
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Damsieee
Damsieee

secondary 3 chevron_right A Maths chevron_right Singapore

Can someone explain to me how does the coeff of x^2 > 0 and f(x) > 0 lead to there having no real roots? I stared and read that sentence 20 times and still dont get it. Pls help

Date Posted: 6 months ago
Views: 134

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Danny Low
Danny Low's answer
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Hope this helps
Damsieee
Damsieee
6 months ago
Ohh so when f(x) > 0, there wont be any real roots because the curve will never cut thru the x axis?
Danny Low
Danny Low
6 months ago
Yes basically f(x) is the y coordinate. F(x) >0 means all y coordinates >0, thus the curve does not intersect with the x axis
Damsieee
Damsieee
6 months ago
OHHH okay thank you!!!