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# C2 Qs help please watch

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1. Please could sum 1 help me iwht ht emethods and solutions 4 these 2 Qs
1. Find all the angles in the range 0-360degrees satisfying the eqtn sinx+1/2 sqrt3
(that is sinx plus a half times the sqrt of 3)
I got -60 as my intitial solution, dont no where to go form there!!!!

and Q2
solve the eqtn 3^x=15, giving you answer correct to 4.d.p
2. Question 1, use ur calculator, draw a sin wave and see what other x values it occurs at

question 2, 3^x = 15
xln3=ln15
x=ln15 / ln3
3. i dont have a graphical calculator and have the exam next week!! i was told my scientific one would be fine!! is there any way else to do Q 1, i can never draw a sine graph accurately
4. :| it just goes up and down and up and down....
starting at x=0 sinx=0 it goes up peaking at x=90 and then comes down, cuts the x axis as x=180 etc etc you can remember that!!
5. please could you tell me the solution for Q1 and is there a quick way of getting the values after -60 , if -60 is the correct term
6. understand this?
in other words x=240,300
Attached Images

7. thanks soo much, thanks for going thru all that trouble jsut to help me lol xx
8. btw guys when do you have your c2 exams?
9. erm a week on wednesday
10. Wednesday 19th?
11. no the 12th
12. what? are you on edexcel? From the edexcel timetable its saying 19th..Ill check
13. ocr!
14. (Original post by m66)
ocr!
OCR or OCR(MEI)?
15. mei! Do you know the difference
16. 2 different syallubuses, same exam board
17. well im absolutely appauling at maths, any advice for the mei syllabus?
18. I'm on the old syallus i'm afraid :-( the pure further maths modules tend to be *****ier than other exam boards though (imho!)
19. well im absolutely appauling at maths, any advice for the mei syllabus?
This link has a comprehensive set of solutions to past MEI papers. The access is free but you will need to register. It only takes a few minutes.

http://meikleriggs.org.uk/

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Updated: January 5, 2005
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