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Question
secondary 4 | A Maths
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I know how to go about solving this question. But I'm stuck at one part. How do we know if D<0 or D>0. Coz the ans key say its less than 0. Idk how they determined that.
Pls explain,, thanks!
Date Posted: 4 years ago
Views: 211
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done
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Hope this helps?
Date Posted:
4 years ago
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