Jiayang's answer to Idan Levy's Junior College 1 H1 Maths question.
done
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clear
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Ok now your qn is clear
Date Posted:
6 years ago
Thank you for the solution!
Can you explain why you only did + for x1>4 and - for x2<1?
And also, why didn't you do x1<-2?
Can you explain why you only did + for x1>4 and - for x2<1?
And also, why didn't you do x1<-2?
Cus the domain of your function is { x ∈ R : x ≥ 0 }
Regarding your first qn...
The "minus" root is definitely the smaller root and vice versa about the "plus" root
The "minus" root is definitely the smaller root and vice versa about the "plus" root
But why didn't you do the check for it?
It gives a different answer for m.
It gives a different answer for m.
Check for what?
"minus" <= "plus"
1<4
There's no need to check
1<4
There's no need to check
I understand now, thanks a lot!
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