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  1. Y

    Physics Guide

    Here it is.
  2. Y

    Physics Guide

    It is updated. The only thing left is Electrcity.
  3. Y

    Physics Guide

    Guys it will be updated in an hour.
  4. Y

    Physics Guide

    I will update this page every time I am done with a topic inshallah. The extra stuff will be added soon today. For sure, 75% of the notes will be completed today. But so far you can see 3 topics fully covered.
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    PHYSICS PAPER 1 HELP!

    Try to do October November 2010. It tests all your basic knowledge. Then try and answer the hardest papers you can find. To clear your doubts try this: http://www.xtremepapers.com/community/threads/physics-guide.14933/
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    Physics Guide

    Guys, the following file is going to be very useful for your Physics, especially Paper 1 and 3. You can find explanations of various topics that are likely to be asked about in paper 1 such as extension,waves, general physics, speed etc. But please note, electricty, magnetism and nuclear...
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    Mathematics: Post your doubts here!

    October november 2009 is perfect I have got to say. Function graphs, sequences and probability that requires real thinking. Even there is a good similarity question!!! And always smile. Here is how to do 7 c) a) It says there is a similar cone having a radius 3 times higher than the...
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    Mathematics: Post your doubts here!

    Find the gradients using the points A and B only. That is what it means actually.
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    Mathematics: Post your doubts here!

    Just remember to make a line you need at least two points. Here you got two x values. You can get the corresponding y values easily by subtracting 10.
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    Mathematics: Post your doubts here!

    What I did was= 1. Take two points such -5 and 2 2. See where they meet the y-axis - 5 meets 40 2 meets 10 3. And then you can see that g(x) equals to y. So for g(x)-10 equals y-10. Result- 40-10= 30 and 10-10=0 So the line will go through (-5,0) and (2,0)
  11. Y

    Mathematics: Post your doubts here!

    The gradient is the same, the only different is that the y values are different.
  12. Y

    Mathematics: Post your doubts here!

    Can you restart it?
  13. Y

    Mathematics: Post your doubts here!

    I think then there is something wrong with it. Are you using an fx calculator?
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    Mathematics: Post your doubts here!

    I answered this today! I forgot about that. See: Let <DBA= y x+3 can be considered as the opposite. So 4+3=7 And 2x+5 is the adjacent. So 2 x 4+ 5=13 Remember: We got x value before Now, if you can notice Triangle DAB can be a right angled triangle. So use the tan rule. 1. tan y=opp/adj 2...
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    Mathematics: Post your doubts here!

    A calculator doesn't ever make a mistake. There is a trick to use the cosine rule using a calculator: To find a side we use this method: The formula which you need is a2= b2+c2-2bc x cos A In your calculator do it part by part. Like first b2+ c2. Then do - (2 x b x c x cos A) Then at last...
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    Mathematics: Post your doubts here!

    Yes, I got it. Thanks.
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    Mathematics: Post your doubts here!

    Thanks always smile. I have some other doubt. How to answer question 6 b) iii: http://www.xtremepapers.com/papers/CIE/Cambridge%20IGCSE/Mathematics%20(0580)/0580_w09_qp_4.pdf
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    Mathematics: Post your doubts here!

    But, why do we add 2/6?
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    :( MATHS PPR 4 & PHYSIX PAPER1 ..... TENSION!

    For Maths just do all Paper 42s for 2010 and 2011. And revise through all the concepts. For Physics revise all the IMPORTANT concepts and then do a at least 2 latest past papers. That would be enough. What I mean by revising, just read the formulas and important points. Don't go to deeply...
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    Mathematics: Post your doubts here!

    Can anyone explain to me this probability question in O/N 09 Paper 42: http://www.xtremepapers.com/papers/CIE/Cambridge%20IGCSE/Mathematics%20(0580)/0580_w09_qp_4.pdf I didn't understand question 3 c
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