Author Topic: Intensive Revision Worksheets/Resources For Math  (Read 1970 times)

Offline Numb

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Intensive Revision Worksheets/Resources For Math
« on: April 06, 2010, 10:33:06 am »
Dear all,
I am in desperate need of INTENSIVE REVISION WORKSHEETS FOR IGCSE MATH
on these topics
-Tranformations
-Vectors
-Cos Rule
-Similarity
-Cumulative frequency graphs and Histograms

THIS IS URGENT. please help if you can.

Offline Saladin

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Re: Intensive Revision Worksheets/Resources For Math
« Reply #1 on: April 06, 2010, 02:14:44 pm »
Your book should be suffice, other than that i will try to post topic based papers.

Offline Numb

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Re: Intensive Revision Worksheets/Resources For Math
« Reply #2 on: April 06, 2010, 04:57:02 pm »
thank you so much

Extended Math For IGCSE (THE BLUE BOOK )
pg 227

question 9

i need majoir help on that.
and

pg. 205
question 7 b

and question 9 c

ALSO.
Congruency doesn't seem to be in the syllabus but it has come in past papers.
should i study it?

Offline Saladin

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Re: Intensive Revision Worksheets/Resources For Math
« Reply #3 on: April 06, 2010, 05:20:08 pm »
In the process of answering.

For 9(a)

y=0

Simply make x the subject of the forumula.

You get a hint of why y=0, because in (a), there is no y

(b)

y=-2\frac{1}{2}

What you have to do in this case is that you have to back solve the equation. And then see what you did to get to the original equation.

(c)

y=-8x

(d)

x=\frac{4}{x-8}<br />

x^2-8x-4=0

Thus to get to -7, y has to equal to 3.

« Last Edit: April 07, 2010, 07:56:51 am by The Ultimate Dude 321 »

Offline Numb

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Re: Intensive Revision Worksheets/Resources For Math
« Reply #4 on: April 06, 2010, 08:39:31 pm »
i still didn't get it

Offline Dark Prince

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Re: Intensive Revision Worksheets/Resources For Math
« Reply #5 on: April 07, 2010, 06:36:53 am »
hey, can some1 tell me that where can i find Investigating and Modelling Questions for IGCSE Maths...thnkx ;)

Offline Saladin

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Re: Intensive Revision Worksheets/Resources For Math
« Reply #6 on: April 07, 2010, 08:03:23 am »
i still didn't get it

All you have to do is get urself back to the original equation, and see what y needs to be in order to get back to that equation. If you dont understand that then do this:

1. Make 0 the subject of the formula
2. Then get it into a form like this : ax^2+bx+c
3. Now, compare it to the original equation, x^2-8x-7
4. Now determine what y needs to be in order to get that value.
5. Also remember, if 2x^2-16x-9=0, then x^2-8x-4.5 is also equal to 0.
6. That is often a problem many of my frnds faced.

Hope that helped.

Offline Dark Prince

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Re: Intensive Revision Worksheets/Resources For Math
« Reply #7 on: April 07, 2010, 10:13:39 am »
Thnkxxx......dese r great for practice....thnkx again..i ve downloaded them ;D