Solutions

[4231]

Anyone wanna put up there answers?
I got 19+3√5 for the max length.
i got a = 8 and m = 4 and
the domain question (-infinity,-8] U [-2,infinity)
thats all i can really remember

[nubs]

I'm not sure about the -8 and -2, i think they should both be positive

[Panicmode]

X_x solutions please

[cltf]

X_x solutions please

[-8,-2]
YESS THATS WHAT I GOT!!!

[Panicmode]

X_x solutions please

YESS THATS WHAT I GOT!!!

Lol you quoted my answer after I changed itcausei realised it was wrong

[4231]

nah they were definitely negative..... here are the solutions http://www.itute.com/board/viewtopic.php?f=2&t=2447&sid=c055dbf10049d49941c3fac0951a56c5

[helicopterman1]

I'm pretty sure its not the inner bit ( [-8,-2] ) but the other parts. I just graphed it and used the rule for the subset of domain and the domain is everything but the inner bit?? Is this right?

And its only positive values

[cltf]

X_x solutions please

YESS THATS WHAT I GOT!!!

Lol you quoted my answer after I changed itcausei realised it was wrong

Yeh, just graphed it on the cas...another 2 marks gone

[tazza]

I got...1a) -1/2(sqrt(4-x))
b) (pi*sqrt(3))/6+(pi^2)/36

2a) 1/3 ln(|3x-4|)+c

b) x = 4

3a) ran  [1,7]
period = 4

b) pi/4, 11pi/12

4)a) c= 8, d = 2
b) dom (-inf, -8]U[-2, inf)

5a) 5/8
b) 3/5

6a) k = -4
b) K = R \{-4,-3}

7a) p^3
b) 3p^2 (1-p)
c) p = 3/4

8a) 3/20
b) 1/4

9) m = 4, a = 8

10) a: a cos(theta), a sin(theta)
B) 4 + 2acos(theta) + asin(theta) + a
c) show that blah blah blah
d) 19 + 3 sqrt(5)

[4231]

the domain shouldbe -8 and -2 not 8, 2. and i think u put an i where there should be a -

[tazza]

the domain shouldbe -8 and -2 not 8, 2. and i think u put an i where there should be a -

Yeah you're right, fixed it.

[4231]

and for question 7 b, it should be 1-p not 1ip

[tazza]

Do you think it will matter if we write c = 8 d=2; c =2 d = 8; or we write c=8,d=2 OR c=2, d=8 It was too ambiguous

[Andiio]

What was Q2(b) asking again?

[BoredSatan]

err.. with the maximal domain.. doesnt it have to be defined for both f(x) and g(x)??

cause between -2 and 3 is not defined for f(x)