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Math P2 Oct/Nov 2000 HELP !!!

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Q80BOY:
Thanks for ur help DE and Astar, i appreciate it !!  ;D

Aishath:
for ques.22 (c)

fg(x) means u hv to put g function in f.
f(x)=3 – 2x
g(x)=(x+1)/4

so wherever x is in f(x), put g(x) values in it.

f(x)=3 - 2x ya?
f(x)=3 - 2((x+1)/4)           (the bold one from top is put into x in f(X))
f(x)=3 - ((2x + 2)/4)            
then simplify (2x + 2)/4
which is       (x + 1)/2

then f(x)=3 - (x + 1)/2
            =6/2 - (x + 1)/2
therefore=(6 - x + 1)/2
            =(7 - x)/2
so thats the ans!!!!

fg(x)=(7 - x)/2

hope u got it ;)

sanity_master:
i guess im LATE :D lol

i hope i catch it nxt time :):D

Q80BOY:

--- Quote from: sanity_master on May 06, 2009, 02:20:29 pm ---i guess im LATE :D lol

i hope i catch it nxt time :):D

--- End quote ---

i will save a question for u next time  ;)

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