« previous next »
Pages: 1 [2] 3 4   Go Down

Author Topic: Math paper4 Jun. 2009 help  (Read 6561 times)

Offline Ghost Of Highbury

  • O_o_O lala!
  • SF Farseer
  • *******
  • Posts: 4096
  • Reputation: 41428
  • Gender: Male
  • Namaskaram!
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!
Logged
divine intervention!

Offline @d!_†oX!©

  • SF Master
  • ******
  • Posts: 1268
  • Reputation: 2105
  • Gender: Male
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??!!!
Logged
AAL IZZ WELL!!! ;)

Offline Ghost Of Highbury

  • O_o_O lala!
  • SF Farseer
  • *******
  • Posts: 4096
  • Reputation: 41428
  • Gender: Male
  • Namaskaram!
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...
Logged
divine intervention!

Offline @d!_†oX!©

  • SF Master
  • ******
  • Posts: 1268
  • Reputation: 2105
  • Gender: Male
Re: Math paper4 Jun. 2009 help
« Reply #18 on: November 02, 2009, 05:36:42 pm »
ohhhh
ohhkkk.....!!!!!
cool!!!
Logged
AAL IZZ WELL!!! ;)

Offline moon

  • SF Citizen
  • ***
  • Posts: 222
  • Reputation: 770
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.
Logged

Offline wassup

  • SF Citizen
  • ***
  • Posts: 259
  • Reputation: 384
  • Gender: Male
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??
Logged

Offline moon

  • SF Citizen
  • ***
  • Posts: 222
  • Reputation: 770
Re: Math paper4 Jun. 2009 help
« Reply #21 on: November 02, 2009, 06:30:56 pm »
ya, I got it after long explanation
Logged

Offline moon

  • SF Citizen
  • ***
  • Posts: 222
  • Reputation: 770
Re: Math paper4 Jun. 2009 help
« Reply #22 on: November 02, 2009, 06:48:04 pm »
Ya Thank u :)
Logged

Offline lol

  • Newbie
  • *
  • Posts: 8
  • Reputation: 18
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.
Logged

Offline Ghost Of Highbury

  • O_o_O lala!
  • SF Farseer
  • *******
  • Posts: 4096
  • Reputation: 41428
  • Gender: Male
  • Namaskaram!
Re: Math paper4 Jun. 2009 help
« Reply #24 on: November 03, 2009, 08:09:56 am »
which year/session/paper/question no. ??
Logged
divine intervention!

Offline lol

  • Newbie
  • *
  • Posts: 8
  • Reputation: 18
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)
Logged

Offline Ghost Of Highbury

  • O_o_O lala!
  • SF Farseer
  • *******
  • Posts: 4096
  • Reputation: 41428
  • Gender: Male
  • Namaskaram!
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?...
Logged
divine intervention!

Offline @d!_†oX!©

  • SF Master
  • ******
  • Posts: 1268
  • Reputation: 2105
  • Gender: Male
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!!
Logged
AAL IZZ WELL!!! ;)

Offline lol

  • Newbie
  • *
  • Posts: 8
  • Reputation: 18
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
Logged

Offline @d!_†oX!©

  • SF Master
  • ******
  • Posts: 1268
  • Reputation: 2105
  • Gender: Male
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!!
Logged
AAL IZZ WELL!!! ;)
Pages: 1 [2] 3 4   Go Up
« previous next »