Qualification > Math
maths doubts
Ghost Of Highbury:
--- Quote from: slvri on October 31, 2009, 10:03:21 am ---was it easy or hard because the june 2009 one was &^&%^@ :P :P :P
--- End quote ---
lol..the june 2009 wasnt $#$%@ ... :P.. it was easy..but confronted lots of new questions,, :D
@d!_†oX!©:
ya cooldude!!!!!!
fuys pls get us a proof!!!!!!
we have to shut that tiny teacher of ours man!!!!!!!!!
Ghost Of Highbury:
--- Quote from: cooldude on October 31, 2009, 10:06:59 am ---
yeh dude but since we're not allowed those calcis so we cant get the exact roots. if u silvri or astar have any proof we are gonna stuff it into our maths teachers face on mon when we give fle.
--- End quote ---
any calcultors shud not be able to have these/or be capable of doing any of these
• graphic display (tick)
• data banks (tick)
• dictionaries (tick)
• language translators (tick)
• retrieval or manipulation of text or formulae (tick)
• QWERT keyboards (tick)
• built-in symbolic algebra manipulations (tick)
• symbolic differentiation or integration (not sure abt this, because i can do differentiation in this calci, wat is symbolic differentiation?)
• capability of remote communication with other machines (tick) (ofcourse not lol :P)
astarmathsandphysics:
--- 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 ---
use the Newton raphson method like this:
take
use
now put
etc
@d!_†oX!©:
--- Quote from: A@di on October 31, 2009, 10:13:42 am ---any calcultors shud not be able to have these/or be capable of doing any of these
• graphic display (tick)
• data banks (tick)
• dictionaries (tick)
• language translators (tick)
• retrieval or manipulation of text or formulae (tick)
• QWERT keyboards (tick)
• built-in symbolic algebra manipulations (tick)
• symbolic differentiation or integration (not sure abt this, because i can do differentiation in this calci, wat is symbolic differentiation?)
• capability of remote communication with other machines (tick) (ofcourse not lol :P)
--- End quote ---
built-in symbolic algebra manipulations (tick)
that is not a tick dude!!!!!!!!!
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