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junior college 1 | H2 Maths
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Need help with part i proving
Date Posted: 3 years ago
Views: 480
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done
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clear
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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
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