Post by: Galleria on October 31, 2010, 09:03:59 am
HELP
I HAVE MATH PAPER 2 TOMORROW
AND I AM UNABLE TO DO THESE QUESTIONS
Math, Paper 2:
M/J 2003 Q 17
M/j 2006 Q 14, 26
O/N 2007 No 15
O/N 2008 no 17
HELPHELPHELP
I DONT GET IT
>___<
and i dont get vectors : |
Post by: Ivo on October 31, 2010, 10:22:00 am
O/N 2008 no 17
a) i) Basically it's asking
ii) Applying the same principle,
iii)
Post by: Ivo on October 31, 2010, 10:38:34 am
O/N 2007 No 15
a) We know that
b) Applying the same principle, then
c) Same principle, but now going in
Hope that clears up your doubt! 8)
Post by: Arthur Bon Zavi on October 31, 2010, 10:46:12 am
HI
HELP
I HAVE MATH PAPER 2 TOMORROW
AND I AM UNABLE TO DO THESE QUESTIONS
Math, Paper 2:
M/J 2003 Q 17
M/j 2006 Q 14, 26
O/N 2007 No 15
O/N 2008 no 17
HELPHELPHELP
I DONT GET IT
>___<
and i dont get vectors : |
first read this:
https://studentforums.biz/math-147/transformation-martices-igcse/ (Reply 2)
M/J 2003 Q 17
in (A) you have to draw the shear, i.e the point (0,2) should map onto point (3,2).
in (b)(i) you have to stretch the shear at the given point. This is one way stretch, know the matrix from the site above.
in (b)(ii) you have to write the matrix of the stretch (Before that look at the above site).
Post by: Arthur Bon Zavi on October 31, 2010, 10:59:36 am
M/J 2006 Q 14, 26
(14)(a) 44 : 32 = 11 : 8, i.e 1.375 . This is increased by 5 : 4, i.e 1.25.
Therefore, 44 * 1.25 = 55 and 32* 1.25 = 40.
Therefore measurements of the larger screen is 55 cm and 40 cm.
(14)(b) Model A screen area 44 X 32 1408 16
----------------------- = --------- = ------ = ------
Model B screen area 55 X 40 2200 25
(26) Sorry but Q-26 does not exist.
Hope this was been of help. ;)
Don't worry.
Post by: Arthur Bon Zavi on October 31, 2010, 11:03:16 am
http://www.physics.uoguelph.ca/tutorials/vectors/vectors.html
Also this (Ignore it if you don't understand)..
http://en.wikipedia.org/wiki/Euclidean_vector
Post by: Arthur Bon Zavi on October 31, 2010, 11:05:26 am
http://www.tech.plym.ac.uk/maths/resources/PDFLaTeX/vectors.pdf
Also This :
http://mathforum.org/library/drmath/sets/select/dm_vectors.html
Post by: Alpha on October 31, 2010, 11:13:53 am
Wonderful. +reps for both. ;)
Post by: Arthur Bon Zavi on October 31, 2010, 11:21:05 am
Wow, Ancestor and Ivo, you came before I did.
Wonderful. +reps for both. ;)
Thank you Alpa. :D
Post by: Galleria on October 31, 2010, 11:25:51 am
THAAAANKS!
=D
LOL TEEHEE =D
Post by: Galleria on October 31, 2010, 11:27:42 am
i did a 5 mark question and got 1 lol
Post by: elemis on October 31, 2010, 11:34:55 am
lol do you have a site like that for studying inequalities ?
i did a 5 mark question and got 1 lol
http://www.numberpower.org/BeyondBasics/Inequalities/html/Inequalitiesbasics.html (http://www.numberpower.org/BeyondBasics/Inequalities/html/Inequalitiesbasics.html)
You should see these titles :
Quote
Negative Variable
1-Step Addition & Subtraction
2-Step Addition & Subtraction
1 & 2-Step Multipication
1 & 2-Step Division
Those are videos. Watch them
Post by: Arthur Bon Zavi on October 31, 2010, 11:37:55 am
OMG
THAAAANKS!
=D
LOL TEEHEE =D
Your welcome, thanks Ari, I was going to do that. :D
Post by: Galleria on October 31, 2010, 12:02:54 pm
Post by: ~aanchal~ on October 31, 2010, 01:00:48 pm
HIsame here best of luck
HELP
I HAVE MATH PAPER 2 TOMORROW
AND I AM UNABLE TO DO THESE QUESTIONS
Math, Paper 2:
M/J 2003 Q 17
M/j 2006 Q 14, 26
O/N 2007 No 15
O/N 2008 no 17
HELPHELPHELP
I DONT GET IT
>___<
and i dont get vectors : |
Post by: Galleria on October 31, 2010, 02:47:18 pm
does anyone know those handy dandy formulas for rotation, reflection, enlargement and stretch?
like,
P(x,y) -----(reflection in y=x)----> P(y,x)
anyone ? lol
Post by: elemis on October 31, 2010, 02:58:51 pm
Post by: elemis on October 31, 2010, 02:59:29 pm
Post by: Galleria on October 31, 2010, 03:03:14 pm
you rock!
Post by: elemis on October 31, 2010, 03:08:18 pm
looool thanks :D
you rock!
I know :P
Post by: ~aanchal~ on October 31, 2010, 03:09:41 pm
same here best of lucklol
i didnt know this was u
so DUMB of me
i thought i found some1 whose given exams with me...
Post by: Alpha on November 01, 2010, 08:42:21 am
heeey
there was a locus' question
it was hard
it asked us to draw all the locus outside the triangle, 3 cm away. how do we do it ?
[3 marks]
Have 24 hours elapsed?
Post by: Arthur Bon Zavi on November 01, 2010, 08:48:17 am
heeey ,
does anyone know those handy dandy formulas for rotation, reflection, enlargement and stretch?
like,
P(x,y) -----(reflection in y=x)----> P(y,x)
anyone ? lol
How many times do I give you that URL. Didn't you see my reply on first page. :-\
I am not being rude. :-\
Post by: Galleria on November 01, 2010, 08:52:15 am
:D
ill pay more attention next tiiime
---
and alphaaa , lol considering they have 3 variants i dont know why woulddd it matter anymore reaaaally .
Post by: Vin on November 01, 2010, 08:56:38 am
and alphaaa , lol considering they have 3 variants i dont know why woulddd it matter anymore reaaaally .
Three of my friends are sitting beside me. They're yet to give give this paper. One's doing variant 1, others are doing variants 2 and 3. So yeah... matters. :P
Post by: Alpha on November 01, 2010, 08:58:15 am
lol sorry!
:D
ill pay more attention next tiiime
---
and alphaaa , lol considering they have 3 variants i dont know why woulddd it matter anymore reaaaally .
And it matters here for your survival on SF. ;)
Post by: Arthur Bon Zavi on November 01, 2010, 09:01:41 am
Three of my friends are sitting beside me. They're yet to give give this paper. One's doing variant 1, others are doing variants 2 and 3. So yeah... matters. :P
That's wrong. :P
That is impossible, when are the other two having their flights? :P
And Galleria, note one thing, whole question papers is not changed, but some questions are changed plus, some of them will be swapped. That is the case of having different variants, worldwide. You have to follow the rules of the forum, if it's said after 24 hours, then after 24 hours only.
The same answers you will be having, perhaps even if you solve this question after few hours. :D
Have Patience. :D
Post by: Galleria on November 01, 2010, 09:12:34 am
but that's a lie
i know one country does only one variant
Post by: Master_Key on November 01, 2010, 09:15:23 am
Post by: Vin on November 01, 2010, 09:18:35 am
loool okay
but that's a lie
i know one country does only one variant
I live in a very GIGANTIC country. VARY HUGE.
They live in different parts of the country. We're having a study sleepover. I've known them since years. We were in the same school once upon a time. They'll leave in a few. Wish them luck. ;)
We distinctively have a très rapid transportation here. VERY fast.
Post by: Galleria on November 01, 2010, 09:24:55 am
Post by: Arthur Bon Zavi on November 01, 2010, 09:27:43 am
Its not that a country does one variant. Thats wat i know, maybe that some schools may take 1 variant and others the 2 or 3.
They can't take, didn't you see the time-table, so why will they have different time table for different zones? Galleria says right. Vin, what are you telling?
India has variant, (paper x2), like that others have different relevant to the time zones.
There are 5 zones :
2
3
4
5
6
.......
Post by: Master_Key on November 01, 2010, 09:31:08 am
They can't take, didn't you see the time-table, so why will they have different time table for different zones? Galleria says right. Vin, what are you telling?
India has variant, (paper x2), like that others have different relevant to the time zones.
There are 5 zones :
2
3
4
5
6
.......
yea i saw, but u can see that both variants are in the time table.
So 1 school may take variant 1 and the other variant 2, the timetable will be different only for schools.
Post by: Vin on November 01, 2010, 09:33:10 am
yeah sure because i'm so dumb
No, of course not, I'm dumb enough to make all that crap up. :P
I was just fooling around. ;)
Post by: Vin on November 01, 2010, 09:38:14 am
yea i saw, but u can see that both variants are in the time table.
So 1 school may take variant 1 and the other variant 2, the timetable will be different only for schools.
No man. If one country has multiple variants, there would be no point having variants at all.
Suppose I'm in China, where, according to you, follows variant 1 and 2. I'm doing 2
Suppose my friend is in the middle east, they're following variants 3 and 2. He too, is doing 2. Now, I can call him up and leak things.
^^So to avoid this, particular zones have the same variant.
Having multiple variants in the same country is practically futile.
Post by: Master_Key on November 01, 2010, 09:39:46 am
No man. If one country has multiple variants, there would be no point having variants at all.
Suppose I'm in China, where, according to you, follows variant 1 and 2.
Suppose my friend is in the middle east, they're following variants 3 and 2. Now, I can call him up and leak things.
^^So to aviod this, particular zones have the same variant.
Having multiple variants in the same country is practically futile.
okay i got now. It is one variant for one country.
Post by: Arthur Bon Zavi on November 01, 2010, 09:40:29 am
yea i saw, but u can see that both variants are in the time table.
So 1 school may take variant 1 and the other variant 2, the timetable will be different only for schools.
No variant are two different except for the practicals in the AS/A Levels.
Vin you are the biggest dumb, instead you would have explained galleria with a different tone, style and manner. :P
Post by: Vin on November 01, 2010, 09:42:14 am
No variant are two different except for the practicals in the AS/A Levels.
Vin you are the biggest dumb, instead you would have explained galleria with a different tone, style and manner. :P
I'll take that as a compliment. ;) That would just spoil the fun.
Post by: Master_Key on November 01, 2010, 09:45:12 am
No variant are two different except for the practicals in the AS/A Levels.
Vin you are the biggest dumb, instead you would have explained galleria with a different tone, style and manner. :P
Practicals are in AS levels only. :P
Post by: Arthur Bon Zavi on November 01, 2010, 09:52:03 am
Practicals are in A levels only. :P
I would not be wrong if I correct that A to AS! :P
Post by: Master_Key on November 01, 2010, 12:50:28 pm
I would not be wrong if I correct that A to AS! :P
Sorry i was in a hurry.
Post by: Galleria on November 02, 2010, 03:28:54 pm
24 hours = passed
how do we do this ?
locus question,
draw three locus points outside the triangle , three cm away from it .
Post by: Alpha on November 02, 2010, 04:08:24 pm
Okaaaay
24 hours = passed
how do we do this ?
locus question,
draw three locus points outside the triangle , three cm away from it .
Make parallel lines 3 cm away from the triangle, no?
You'd get a similar triangle to this one on the outside.
Post by: ~aanchal~ on November 03, 2010, 12:02:57 pm
Okaaaay
24 hours = passed
how do we do this ?
locus question,
draw three locus points outside the triangle , three cm away from it .
draw 3cm arc from 3 points + parallel lines measuring 3cm from all the sides