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    (Original post by physicsmaths)
    Calculator or non calc? Ill do it in the morning
    I assume you want the infinite solutions?


    Posted from TSR Mobile
    exact answers in terms of inverse trig, acute angles only

    you can use calc
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    10 days to A level results

    Question for Monday 03/08/15
    A Level Maths Upwards required


    and for those who want that little bit extra,
    AS level Maths Upwards required
    Attached Images
  1. File Type: pdf Q34, Monday 03-08-15, solution.pdf (189.9 KB, 98 views)
  2. File Type: pdf Q34, Monday 03-08-15, EXTRA, solution.pdf (124.6 KB, 59 views)
  3. File Type: pdf Q34, Monday 03-08-15.pdf (14.4 KB, 148 views)
  4. File Type: pdf Q34, Monday 03-08-15, EXTRA.pdf (17.3 KB, 63 views)
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    9 days to A level results

    Question for Tuesday 04/08/15
    A Level Maths Upwards required


    and for those who want that little bit extra,
    A Level Maths Upwards required
    Attached Images
  5. File Type: pdf Q35, Tuesday 04-08-15.pdf (13.5 KB, 64 views)
  6. File Type: pdf Q35, Tuesday 04-08-15, EXTRA.pdf (13.2 KB, 66 views)
  7. File Type: pdf Q35, Tuesday 04-08-15, solution.pdf (159.1 KB, 56 views)
  8. File Type: pdf Q35, Tuesday 04-08-15, EXTRA, solution.pdf (118.3 KB, 56 views)
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    8 days to A level results

    Question for Wednesday 05/08/15
    A Level Maths Upwards required


    and for those who want that little bit extra,
    Further Maths Upwards required
    Attached Images
  9. File Type: pdf Q36, Wednesday 05-08-15.pdf (13.7 KB, 55 views)
  10. File Type: pdf Q36, Wednesday 05-08-15, EXTRA.pdf (13.4 KB, 68 views)
  11. File Type: pdf Q36, Wednesday 05-08-15, EXTRA, solution.pdf (197.6 KB, 45 views)
  12. File Type: pdf Q36, Wednesday 05-08-15, solution.pdf (85.1 KB, 74 views)
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    (Original post by TeeEm)
    8 days to A level results

    Question for Wednesday 05/08/15
    A Level Maths Upwards required


    and for those who want that little bit extra,
    Further Maths Upwards required
    Its 7 days to results not 8 days
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    (Original post by SCAR H)
    Its 7 days to results not 8 days
    Its 8 count it.
    13th-(current date -1)=8



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    (Original post by physicsmaths)
    Its 8 count it.
    13th-(current date -1)=8



    Posted from TSR Mobile
    Its 7 look at the f.. countdown
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    (Original post by physicsmaths)
    Its 8 count it.
    13th-(current date -1)=8



    Posted from TSR Mobile
    + i get my results on wednesday anyways
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    (Original post by SCAR H)
    Its 7 look at the f.. countdown
    5th to 6th
    6th to 7th
    7th to 8th
    8th to 9th
    9th to 10th
    10th to 11th
    11th to 12th
    12th to 13th
    You tell me what that adds to. We round up btw when talking about days.


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    (Original post by SCAR H)
    Its 7 look at the f.. countdown
    Those "x days to A level results" are generally posted fairly close to midnight, at which point they are exactly accurate. It would make no sense to post "7 days to A level results" at this time just because that's what you get if you round down.

    edit: this is assuming A level results refers to the very beginning of the day although really it's going to be quite a few hours more than that for most
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    (Original post by physicsmaths)
    5th to 6th
    6th to 7th
    7th to 8th
    8th to 9th
    9th to 10th
    10th to 11th
    11th to 12th
    12th to 13th
    You tell me what that adds to. We round up btw when talking about days.


    Posted from TSR Mobile
    Dont count today coz its already the 5th
    So 7 days and x hours.

    You are wrong (this is basic arithmetics)
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    (Original post by SCAR H)
    Dont count today coz its already the 5th
    So 7 days and x hours.

    You are wrong (this is basic arithmetics)
    Lol ok.
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    7 days to A level results

    Question for Thursday 06/08/15
    A Level Maths Upwards required


    and for those who want that little bit extra,
    Further Maths Upwards required
    Attached Images
  13. File Type: pdf Q37, Thursday 06-08-15, solution.pdf (210.2 KB, 47 views)
  14. File Type: pdf Q37, Thursday 06-08-15, EXTRA, solution.pdf (184.8 KB, 60 views)
  15. File Type: pdf Q37, Thursday 06-08-15.pdf (12.8 KB, 87 views)
  16. File Type: pdf Q37, Thursday 06-08-15, EXTRA.pdf (20.5 KB, 68 views)
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    I've sketched the graphs and can see where they intersect, but how can I deal with it algebraicly? Haven't came across this before sorry if it's simple :P


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    (Original post by Joshthemathmo)
    I've sketched the graphs and can see where they intersect, but how can I deal with it algebraicly? Haven't came across this before sorry if it's simple :P


    Posted from TSR Mobile
    Cosx=sin(pi/2-x)
    Then its just solving pi/2-x=sqrrt(pi^2-4x^2)


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    (Original post by physicsmaths)
    Cosx=sin(pi/2-x)
    Then its just solving pi/2-x=sqrrt(pi^2-4x^2)


    Posted from TSR Mobile
    Lol, I forgot about that one. Thanks!


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    Is anyone getting
    Spoiler:
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    10 * 10!

    For the extra question? My method feels extremely unrigorous / dodgy

    Posted from TSR Mobile
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    (Original post by Krollo)
    Is anyone getting
    Spoiler:
    Show

    10 * 10!

    For the extra question? My method feels extremely unrigorous / dodgy

    Posted from TSR Mobile
    I think that is the correct answer.
    interested to see the method if different to mine
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    (Original post by TeeEm)
    I think that is the correct answer.
    interested to see the method if different to mine
    Name:  1438878891834.jpg
Views: 90
Size:  55.4 KB

    It feels somehow wrong to treat functions like this, but I think this works nevertheless.

    Posted from TSR Mobile
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    (Original post by Krollo)
    Name:  1438878891834.jpg
Views: 90
Size:  55.4 KB

    It feels somehow wrong to treat functions like this, but I think this works nevertheless.

    Posted from TSR Mobile
    I need to look at it in detail ( I just came back from holidays a few hours ago) but I think it is correct.

    My solution is essentially the same, I just show more steps for the benefit of students, and I have used IBP which is essentially a variation on what you did at the end.
 
 
 
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