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g* N*tlo\l V-&- Io.^,*U tJ*&^?* X Fq,? ^-- t1) l:-$fr o = 'q =[!) +' noule,. AnDtIr/ Ytr l) , )=t1) r= [),8=[?) , L=(l), u=(g) Hn \ trx l1 t- -l^h L",rn^ W{P =[')Ye ]r:?- o,*,**#ttffi,t:?r,l'a 01Hffiffi$ffimrb '{.p.ffi0t

nrich.maths.org journeys.pdfCreated Date: 3/21/2011 7:14:08 PM

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Page 1: nrich.maths.org journeys.pdfCreated Date: 3/21/2011 7:14:08 PM

g* N*tlo\l V-&- Io.^,*U tJ*&^?*l

XFq,?

^-- t1)l:-$fro = 'q

=[!)+'

noule,.AnDtIr/

Ytr

l) , )=t1)

r= [),8=[?) , L=(l), u=(g)

Hn\trx

l1t -

-l^h L",rn^W{P=[')Ye ]r:?-

o,*,**#ttffi,t:?r,l'a01Hffiffi$ffimrbffis' { .p. f f i0t

Page 2: nrich.maths.org journeys.pdfCreated Date: 3/21/2011 7:14:08 PM

$lJ-*t q pdhn U'-t^-.qst A,U.J *JI

T \** .d*J U*U

' ! ,1

, )

i r f [=1' : , ) te, \3 ' / t - t ' '

i ru"', f AlB,t,,. r,.o.1Cf,*f to qgi qq," "f+"t tr*"M dfA

6#* '.ict)'* erQn' $

oftoa orp1p1ud, ,',i u ur

i \ , * I \ i - i I

i u=lil'hl )f4i rt* Fk-'- '{ 'B'/ :,) Un*,i(x, ̂)

n(r, r) = o \ lz /

iI;,t\fkt ryglf*rki ,IiIq "qLF", E =' | * E

ii?p-r',ilrqTBPi Tf rtff dil'i'D o-eluio'ne,

i *A E w {5"b Ai , '. 1,,1e -can

hx.., € q,Nen hi He,.* Hn, Nt!. =L d

eI

i( *r tx.) =G) ^\i)'';l;1,

i 14 r -rr L{z -- + -|€)

W's=Q=fl)"(r;)li

I

Page 3: nrich.maths.org journeys.pdfCreated Date: 3/21/2011 7:14:08 PM

I"d^, $,&pEodr

1 --t" r"A t1z : X r

fr ;trr ?.,4I-i l^,24*;,

Xrt\, -4&:' 'l '

= {

^ ' 'q, =3y' , : - l&=3( r^- l

c:(:J) g.(?)

O' I L\^44l-/,

o. Ll^4-^HMlk*,.^,q*J., I a..^{* g*{-'/*- nncnalre{5i-Ex A, 4