Qualification > Math
maths doubts
slvri:
--- Quote from: @d!_†oX!© on October 31, 2009, 09:45:10 am ---dude!!!
fx-991 MS isn't allowed!!!!
--- End quote ---
really? i uesd 991ms in all my june 2009 papers :P :P :P
and thats good to hear adi.......so which papers have u already given?
Ghost Of Highbury:
--- Quote from: slvri on October 31, 2009, 09:52:15 am ---really? i uesd 991ms in all my june 2009 papers :P :P :P
and thats good to hear adi.......so which papers have u already given?
--- End quote ---
only computer studies finished...as a subject..many more to go, :P
@d!_†oX!©:
dude for this question.....don't u just have to find the points of intersection of the both functions!!!!
cuz it says the equation is a simplified form of f(x)=g(x)
so the points where these both grphs meet is the answer.....it says "USE YOU GRAPH"
Ghost Of Highbury:
--- Quote from: cooldude on October 31, 2009, 09:57:06 am ---
okay i got the soft copy. it was on fep all the time. they usually give us a range, in this q 2.3-2.7 but i got 2.2. i usually find the exact ans by trial and improvement but that method is too time-consuming. so please temme another method to do it. this questions equation simplifies to (x^3)+3(x^2)-3x-27=0, i checked the ans by 991-ms, we get two complex roots and one real root, so if u hve a method to find the real root to about 3-4 sf i would appreciate it.
http://www.freeexampapers.us/IGCSE/Maths/CIE/2004%20Jun/0580_s04_qp_4.pdf (q2 (c) (ii))
--- End quote ---
there is another method..but its not dere for maths..v have it in add. math..
for this, first - u did some error in ur calci. u get correct values. no complex roots.
and yea..for the answer..u have to draw the curve very accurately..thats the only way ..wat i do is..
find the answer from my calculator..show the intersection in my graph..and write an answer which is close to the calci's answer and the graph answer..
@adi - i guess he already knows that!...he just said that he doesnt get an answer in the range provided in the ms ... hets it close to it!..CHILL MAN!..
slvri:
--- Quote from: A@di on October 31, 2009, 09:55:25 am ---only computer studies finished...as a subject..many more to go, :P
--- End quote ---
was it easy or hard because the june 2009 one was &^&%^@ :P :P :P
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