Bryan Chong's answer to shannon's Secondary 4 A Maths Singapore question.
done
{{ upvoteCount }} Upvotes
clear
{{ downvoteCount * -1 }} Downvotes
Part (ii). Uploading (iii) seperately.
'Hence' questions hint at the relatability of the previous part, meaning u cna derive some assistance from the prev part.
I can't remember which theorem is this, but it relates to forming the equation of f(x) = Q(x)D(x) + R(x)
Q -> quotient
D -> Divisor
R -> Remainder
In part i, we found R ==> whatever is left after taking out R has to be divisible by D (i.e. x+1). E.g. 15/4 = 3 R3, after taking out remainder 3 from 15, we get 12, which is completely divisible by 4. If you didnt spot the correlation between the cubic polynomial and x+1, u can also use Long Division or factor theorem to get the same ans.
'Hence' questions hint at the relatability of the previous part, meaning u cna derive some assistance from the prev part.
I can't remember which theorem is this, but it relates to forming the equation of f(x) = Q(x)D(x) + R(x)
Q -> quotient
D -> Divisor
R -> Remainder
In part i, we found R ==> whatever is left after taking out R has to be divisible by D (i.e. x+1). E.g. 15/4 = 3 R3, after taking out remainder 3 from 15, we get 12, which is completely divisible by 4. If you didnt spot the correlation between the cubic polynomial and x+1, u can also use Long Division or factor theorem to get the same ans.
Date Posted:
3 years ago
360 Tutoring Program