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Author Topic: Math paper4 Jun. 2009 help  (Read 7671 times)

Offline Ghost Of Highbury

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Re: Math paper4 Jun. 2009 help
« Reply #15 on: November 02, 2009, 05:27:47 pm »
Quote from: @d!_†oX!© on November 02, 2009, 05:26:33 pm
man!!!!!
after so many explanations anyone can understand it!!!
this shows how eager ppl at sf are to help others!!!
Thanks alot cooldude, nid, manbir, wassup and me too!!!

By the way moon....tll us if u didn't understand anything!!u'll have another 10 ppl tryina explain it to u!!

u may add me too!
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Offline @d!_†oX!©

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Re: Math paper4 Jun. 2009 help
« Reply #16 on: November 02, 2009, 05:29:29 pm »
Quote from: A@di on November 02, 2009, 05:27:47 pm
u may add me too!
hawww!!!!but i didn't se uu anywhere on this thread aadi??!!!
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Offline Ghost Of Highbury

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Re: Math paper4 Jun. 2009 help
« Reply #17 on: November 02, 2009, 05:34:07 pm »
Quote from: @d!_†oX!© on November 02, 2009, 05:29:29 pm
hawww!!!!but i didn't se uu anywhere on this thread aadi??!!!

i meant, u can add me to the 10 ppl.

"haaaww"...hahahaha..!!!..man!!..lolzz...
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Offline @d!_†oX!©

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Re: Math paper4 Jun. 2009 help
« Reply #18 on: November 02, 2009, 05:36:42 pm »
ohhhh
ohhkkk.....!!!!!
cool!!!
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Offline moon

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Re: Math paper4 Jun. 2009 help
« Reply #19 on: November 02, 2009, 06:14:23 pm »
At last!!!!! I understood that.but I still think that the puzzle question Q11 d(i)&(ii) was the hardest one in June 2009.Isn't it ??? ??? ONCE AGAIN THANK U VERY MUCH FOR HELPING ME.
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Offline wassup

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Re: Math paper4 Jun. 2009 help
« Reply #20 on: November 02, 2009, 06:19:03 pm »
Quote from: moon on November 02, 2009, 06:14:23 pm
At last!!!!! I understood that.but I still think that the puzzle question Q11 d(i)&(ii) was the hardest one in June 2009.Isn't it ??? ??? ONCE AGAIN THANK U VERY MUCH FOR HELPING ME.

u got q11??
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Offline moon

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Re: Math paper4 Jun. 2009 help
« Reply #21 on: November 02, 2009, 06:30:56 pm »
ya, I got it after long explanation
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Offline moon

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Re: Math paper4 Jun. 2009 help
« Reply #22 on: November 02, 2009, 06:48:04 pm »
Ya Thank u :)
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Offline lol

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Re: Math paper4 Jun. 2009 help
« Reply #23 on: November 03, 2009, 08:04:11 am »
Can someone help me with Question 5 c i. When i was checking my answers I differentiated the equation (x/2)-(2/x) and got 1/2+2x^-2, which in the question gives me a tangent of 0.75, however this does not seem to be an acceptable answer in the mark scheme.
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Offline Ghost Of Highbury

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Re: Math paper4 Jun. 2009 help
« Reply #24 on: November 03, 2009, 08:09:56 am »
which year/session/paper/question no. ??
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Offline lol

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Re: Math paper4 Jun. 2009 help
« Reply #25 on: November 03, 2009, 08:11:01 am »
Paper 4 June 2009 (the topic of this forum :p)
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Offline Ghost Of Highbury

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Re: Math paper4 Jun. 2009 help
« Reply #26 on: November 03, 2009, 08:11:26 am »
Quote from: lol on November 03, 2009, 08:11:01 am
Paper 4 June 2009 (the topic of this forum :p)
igcse maths?...
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Offline @d!_†oX!©

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Re: Math paper4 Jun. 2009 help
« Reply #27 on: November 03, 2009, 08:16:55 am »
u need to draw a tangent at the point x=2 on the graph....
and then find the gradient by y2-y1/x2-x1

see the graph here....now just take out the gradient
no need for differentiation!!
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Offline lol

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Re: Math paper4 Jun. 2009 help
« Reply #28 on: November 03, 2009, 08:23:46 am »
Yep IGCSE 0580 Maths Paper 4 June 2009

Yea I could do it that way, but I just want to check using differentiation because i'm going to need to be able to do that way later. Also sometimes my tangents aren't very accurate so I just want to be able to use differentiation to check it.

Thanks
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Offline @d!_†oX!©

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Re: Math paper4 Jun. 2009 help
« Reply #29 on: November 03, 2009, 08:27:42 am »
ohhkkk....ur welcome
but i cant help u with differentiation....aadi or shreycool may help u...i dont do add. maths!!
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