James's answer to Rae Kuan's Junior College 1 H2 Maths Singapore question.
done
{{ upvoteCount }} Upvotes
clear
{{ downvoteCount * -1 }} Downvotes
Do see if it makes sense
Date Posted:
3 years ago
hi thanks for the help! sorry but could i clarify how you got from the 3rd to the 4th line? i know its one of the formulas from the mf26, but i can't identify the P and Q terms
Hi!
For this ull just hv to equate
(P+Q)/2 = (k+1)x ---(1)
(P-Q)/2 = x ---(2)
From (2):
Q= P-2x ---(3)
Subst (3) into (1):
(P+P-2x)/2 = (k+1)x
P= (k+2)x
Q will therefore be kx
For this ull just hv to equate
(P+Q)/2 = (k+1)x ---(1)
(P-Q)/2 = x ---(2)
From (2):
Q= P-2x ---(3)
Subst (3) into (1):
(P+P-2x)/2 = (k+1)x
P= (k+2)x
Q will therefore be kx
got it, thank you
360 Tutoring Program