Jiayang's answer to ddiiaabb's Junior College 1 H1 Maths question.
thx, do you have another way(without using L'Hôpital's rule)?
With my limited knowledge I’m afraid not :(
You can apply L'Hospital rule to a product?
I thought it is applied to a quotient f(x)/g(x), hence (4x-7) should be brought to the denominator and becomes (4x-7)^(-1) , before L'Hospital rule is applied?
I thought it is applied to a quotient f(x)/g(x), hence (4x-7) should be brought to the denominator and becomes (4x-7)^(-1) , before L'Hospital rule is applied?
0×∞ can always be rewritten as 0/0 or ∞/∞
Yes, and that is after you move one of them to the denominator, which i am trying to point out.
In your working you differentiated (4x-7) without bringing it to the denominator. Is that ok?
In your working you differentiated (4x-7) without bringing it to the denominator. Is that ok?
Ahh I see you’re talking abt. You're right abt L'Hopital's rule. I've uploaded a corrected solution you can go have a look. Chnsges are made below the red line
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