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# Edexcel GCSE maths, give each other questions to do.

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1. (Original post by BTAnonymous)
Ahh I see... just a misunderstanding.

For some stupid reason I thought you rooted the power of 10 instead of the whole calculation.

So 2^10 = 1024

and square root 1024 to get 32 which is 2^5
oh right then
2. (Original post by BTAnonymous)
I still don't understand how you got from:

to

Like the other guy said, why don't you square root 10 but instead divide it by 2?
Basically 2^10 is equal to 1024, when you square root 2^10 you're square rooting 1024 which can be written as 32 or 2^5.

Hope this makes more sense
3. (Original post by Ano123)
Here's a question.
Find the value of such that

.
Any takers?
4. (Original post by Ano123)
Any takers?
x= -1?
5. If you want a challenge, there is some C1 content that overlaps some of the A* Gcse topics.

http://www.physicsandmathstutor.com/...on-worksheets/

Only the algebra, coordinate geometry and graphs of functions sheets will be relevant and some parts you may not know how to do but it should be helpful!
6. (Original post by ihatehannah)
x= -1?
Good.
Must have been too easy.
What are considered the most difficult GCSE topics?
7. (Original post by Ano123)
Good.
Must have been too easy.
What are considered the most difficult GCSE topics?
it's not the topics that are difficult, it's the problem solving aspect of the topics that they give like the hannah's sweets question.
8. Heres a simple idea with a nice solution: Let be the set of all 2x2 matrices of the form such that the elements a,b,c,d form an arithmetic series. Find all matrices such that is also an element of S.
9. Those are a* questions so try it. They're non calculator aswell

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10. (Original post by mayjunemayhem)
Those are a* questions so try it. They're non calculator aswell

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I can't see why you'd even need a calculator.
11. (Original post by Ano123)
I can't see why you'd even need a calculator.
how do you solve your question
12. (Original post by mayjunemayhem)
Those are a* questions so try it. They're non calculator aswell

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6√2 for question 21?
13. I got the questions from November 2011 that papers good for practice. Check for the solutions

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14. (Original post by mayjunemayhem)
Those are a* questions so try it. They're non calculator aswell

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i got k = 6
15. (Original post by okey)
how do you solve your question
Which question?
16. what mark do we need for an A for GCSE Edexcel maths
17. (Original post by Gooner4life1)
what mark do we need for an A for GCSE Edexcel maths
To be on the safe side of an A you'll need about roughly 65/100 per paper. But really it depends on how both the calculator and non calculator papers are as the grade is based on what you get in both papers which is out of 200.

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18. ...how?

...how?
Do you not understand how to do it?

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