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linkHi, I need help with june 2012 p1 variant 2. Question 7. Please, I'd really appreciate it!
il tell u wat... we haD THIS the year i sat my cie gimme a few mins
yeah i remember this question too. everyone was talking about the first part of this question when we did it last year. it was a tricky part and most difficult question on the paper!i
il tell u wat... we haD THIS the year i sat my cie gimme a few mins
Thanks! And I asked for 7 (ii) not (i), so could you explain that too please?Q2 find f '(x) and see that you will get two terms in x with neg sign hence for all positive values of x it will be a decreasing function
7i
y=5-x
y=11-x^2
sub y you will get 5-x=11-x^2 solve it and take the positive value of x as p and its y coordinate as q
i did this right.
but tell me isnt a+ (n-1)(d) for arithematic progression?
and ar for geometric :/ ?
do this one... i think my p1s getting rusty...yeah i remember this question too. everyone was talking about the first part of this question when we did it last year. it was a tricky part and most difficult question on the paper!
but the ms is showing opposite :OYes, yes. Different formulas for sum though.
Yes, it will be different!Thanks a lot.. I have one more question.
What if the functions were:
f(x) = 3 - 2sinx for 0 ≤ x < pi
f(x) = 3 - 2sinx for 0 ≤ x < 2pi
Would there be any difference in the ranges? (Notice the domain has changed)..
i did this in a rather long way
ending up in a simultaneous eq bringing the right answers
I see you haven't understood my answer through PM's.
Anyways, the range won't change.
PANDA- I didn't wanna bother you with all those questionsIt would change.
there is no sin 270 here.. so no sinx=-1..
so the limits would be 3-2(0) and 3-2(1)
so
3 to 1 would be the limits.. instead of the 5 to 1 in the case of 0<x<2pi.
which.?guys arithematic progression dont have 'r' they have d...
solve this q sumone
http://papers.xtremepapers.com/CIE/...S Level/Mathematics (9709)/9709_s12_qp_12.pdfwhich.?
relax... take a break and cum bak later. study sumthing other than math fr a whiilePANDA- I didn't wanna bother you with all those questions
Omg.. I'm even more confused now. Which is which?
Alright.. thanksYes, it will be different!
For the first, 3 ≤ f(x) < 1
For second, 1≤ f(x) ≤ 5
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