! "$#&%(')%+*-,/. 0+132%(465718,

9;:=A@CBD@CEGFIHKJMLDJNHOA@CBD@CEGF>gPh@C:KHK\h@^]NF(_aFb>

:K@!efcNPh>?\R@

u

P JD]N>a@d]N@b]MFd_aFb>hz

Y

A

{

S

g$

i

k3} V

i

t

{/

a

V^

V^w

X

Vb

F

C

C2

1

x x1 2

x

-HK^cD>g@UaObza9s:A@CBa@EGFU>gPh@C:KHK\h@^]NFU_aFb>cNJD@UefcNP >g\h@U>gP _D>?PRQSPhJbgPh@dBD@CEGFU:K@l7cN>

u

@Nv9;:@^>?PR@U]MP _vP Ja]MP

]MP :l @^THKJNFIoXcNPnQSPnQSHK^cDP_D@C>A@)HK>]MPRQ?]NP:K@I_aFXQSHql7HRF^JHKJNHql7Hq@C:=D@^QS?Ph_N>?PRQSPhJX

=C7yx

SA

PRQGgPhl cNP Jal7Hq@d_aFbJNHOPhJD]MFPh:-Q?cNB

JD]MHql7P!PhJ6:K@UHKJX

D^O v

Z7

~@)P7M_N>gPhQ?HRF^J@CJX

=C7yx

SA

/1032406570 8:9=@?ACBEDGF1;IH1J1;>KMLON7DQPBSRD

D^O v

Z7

Gn 4)0+#&I2

% . 0+132%(465718%

cN_vF^JNX@CTdFbQUoXcNP6:q@efcNP >g\h@JNP ?

u

@U:KFp

=C7yx

SA

Ep(x)

Xx xx x 3 421HObcN>A@!a

z+JD@Ul cN>

u

@d]MPw:q@!efcNJDl7HRF^J)PhJNP >ga

@(_vFCg]NP JD@b]N@(

f

d{

"

%'

IP J$:K@bQ(\ FbJD@^Q]MP_aPhJD]MHKP JXA@C>AQSPxP Jn_NcNJX

D^O v

Z7

Ep(r)

r r

r 12 3 r

Em

Em

= E1

= E2

r 4r 0

-HK^cD>g@da

zD9;JNPh>?v

@!F^