Int2 maths

The height for the cylinder is 15 not 10 so volume is wrong and part b is wrong

Question 1 - it's a 15% decrease not increase. Thank you very much though.


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Here's the paper pdf (thanks to elf5) and worked solutions to the Int2Maths (U123) paper2:


Paper2: Int2M2014_U123_paper.pdf
Paper2 worked solution:

Attachment not found

Please quote this thread link: http://www.thestudentroom.co.uk/showpost.php?p=47498467&postcount=40
If I correct the paper I will post it back here so come back to this post!

Any errors let me know, some questions have optional methods for solutions, in all cases you must show your workings and reasonable sig.figs to get full marks.

Doing paper1 when I finish it i'll add it here also

Hi there, just wanna check question 9, should it not be (x-4) you put (x-5) instead which lead to the wrong final answer.

Well spotted there - its not easy to TeX without errors --excuses egh!

Could anyone post paper 1?

Here's the papers pdf (thanks to elf5, kyle) and worked solutions to the Int2Maths (U123) papers 1&2:


Paper1 (non-calc):Int2M2014_U123_paper1.pdf
Paper2: Int2M2014_U123_paper.pdf
Paper1 (non-calc) solution:Int2M2014_U123_paper1_worked.pdf
Paper2 worked solution:

Attachment not found

Please quote this thread link: http://www.thestudentroom.co.uk/showpost.php?p=47498467&postcount=40
If I correct the paper I will post it back here so come back to this post!

Any errors let me know, some questions have optional methods for solutions, in all cases you must show your workings and reasonable sig.figs to get full marks.

Here's the papers pdf (thanks to elf5, kyle) and worked solutions to the Int2Maths (U123) papers 1&2:


Paper1 (non-calc):Int2M2014_U123_paper1.pdf
Paper2: Int2M2014_U123_paper.pdf
Paper1 (non-calc) solution:Int2M2014_U123_paper1_worked.pdf
Paper2 worked solution:

Attachment not found

Please quote this thread link: http://www.thestudentroom.co.uk/showpost.php?p=47498467&postcount=40
If I correct the paper I will post it back here so come back to this post!

Any errors let me know, some questions have optional methods for solutions, in all cases you must show your workings and reasonable sig.figs to get full marks.

Here's the papers pdf (thanks to elf5, kyle) and worked solutions to the Int2Maths (U123) papers 1&2:


Paper1 (non-calc):Int2M2014_U123_paper1.pdf
Paper2: Int2M2014_U123_paper.pdf
Paper1 (non-calc) solution:Int2M2014_U123_paper1_worked.pdf
Paper2 worked solution:

Attachment not found

Please quote this thread link: http://www.thestudentroom.co.uk/showpost.php?p=47498467&postcount=40
If I correct the paper I will post it back here so come back to this post!

Any errors let me know, some questions have optional methods for solutions, in all cases you must show your workings and reasonable sig.figs to get full marks.

Hi, can you help me please? For Q13 i used the sine rule to find the length of the base of the triangle. I then used 0.5 x b x h to find the area of the triangle and then added it to the area of arc formula. Do you think this would work as well, or would i get any marks out of the 5?

As long as you got the right answer in the end, don't know how you knew the height h though as you have to use pythagoras to get that also!
Alternative methods if mathematically sound are fine so yes you should get full marks here!

Hmm. Q3 paper2 I got 3(x-1)(x+4) as I took out the common factor first. Oh well...

For Q3 the answer can either be (3x-1)(x+4), (3x+12)(x-1) but can also be written 3(x-1)(x+4), 3(x+4)(x-1) so you will still be correct

I got 3(x-3)(x-1) is that completely wrong or would I get any marks for working ?

It's wrong but you probably get 1 mark for it though because you got the x values correct