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Maths, Addmaths and Statistics: Post your doubts here!
No probs. And THX;)- Steel Arm
- Post #4,680
- Forum: O-Levels / GCSEs / IGCSE
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Grade Thresholds for O levels oct nov 2012
how much you reckon it's gonna be this time then....??? :(- Steel Arm
- Post #47
- Forum: O-Levels / GCSEs / IGCSE
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Maths, Addmaths and Statistics: Post your doubts here!
SRRY that shoud be 1/5 and not 1.5:oops:- Steel Arm
- Post #4,678
- Forum: O-Levels / GCSEs / IGCSE
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Maths, Addmaths and Statistics: Post your doubts here!
firstly i would change sin^2y with 1-cos^2y then by expanding you will come to 5cos^2y - 9cosy - 2 = 0 then you let cosy = x then you solve the equation to get either x= 2 or x=-1.5 then you reject 2 and work with -1.5 cosy=-1.5 you solve that easily then- Steel Arm
- Post #4,677
- Forum: O-Levels / GCSEs / IGCSE
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Maths, Addmaths and Statistics: Post your doubts here!
okay - 5^(x+1) = 5^x X 5^1 therefore you can simplify the equation to 2^(2x) X 5^x X 5^1 = 7 you send the 5^1 on the RHS and apply log lg2^(2x) + lg5^x = lg(7/5) you send the power x in front xlg4+xlg5=lg(7/5) x is common so you take it out and multiply the logs x(lg20)=lg(7/5)...- Steel Arm
- Post #4,675
- Forum: O-Levels / GCSEs / IGCSE
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Maths, Addmaths and Statistics: Post your doubts here!
no prob.....i think i know- Steel Arm
- Post #4,673
- Forum: O-Levels / GCSEs / IGCSE
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Maths, Addmaths and Statistics: Post your doubts here!
no its 2 power 2x;)- Steel Arm
- Post #4,671
- Forum: O-Levels / GCSEs / IGCSE
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Maths, Addmaths and Statistics: Post your doubts here!
Hey can anyone please solve this for me... 2^(2x) multiply by 5^(x+1) is equal to 7 please guys help!! p.s. must use logarithms!- Steel Arm
- Post #4,668
- Forum: O-Levels / GCSEs / IGCSE
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Maths, Addmaths and Statistics: Post your doubts here!
http://olevel.sourceforge.net/papers/4037/ check it here- Steel Arm
- Post #4,667
- Forum: O-Levels / GCSEs / IGCSE
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yep. anyways Gud Luck with Add Maths !!
yep. anyways Gud Luck with Add Maths !!- Steel Arm
- Profile post comment
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maths p2
did exactly that but was in great doubt at first this is becuz for other parts you did a small amount of workings for 2-3pts but here there was a considerable amount of work to be done....- Steel Arm
- Post #12
- Forum: O-Levels / GCSEs / IGCSE
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oh! you must know geni0usheeni then???
oh! you must know geni0usheeni then???- Steel Arm
- Profile post comment
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Business Studies p1 ???
ah ok.... even yesterday someone did the same.... and by the end of the thread.... the whole maths paper had been discussed.... and the guy was only asking for our expectations.....lol:D- Steel Arm
- Post #5
- Forum: O-Levels / GCSEs / IGCSE
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Business Studies p1 ???
Gotta wait 24hrs right.....:D- Steel Arm
- Post #3
- Forum: O-Levels / GCSEs / IGCSE
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maths p2
i did check this out http://www.xtremepapers.com/community/threads/how-was-maths-theory-paper-22.21105/- Steel Arm
- Post #8
- Forum: O-Levels / GCSEs / IGCSE