: -

Email: taxiarhis.kourelakos@gmail.com

1 6

29 2015 - :

&

:

A1. ()

A2. ()

A3. ()

A4. ()

5.

)

)

)

)

)

1.

(iii)

ww

:

= =

2+ =

2+

2 =

= (1

32 +

22) =

5

62

=6

5

:

: -

Email: taxiarhis.kourelakos@gmail.com

2 6

=

=1

32

6

5

=

2.

(iii)

:

= (2 + 1)

4

3 =2

:

= (2 2 + 1)

4+

12 =

5

4+

12 =

4

3

:

= |2 (2 (

43 )

)| = 2 | (

8

3)| = 2 | (2 +

2

3)|

=

3.

(i)

1 2

w2

2 1

2 =

2=2

2 2 =

1 2

:

< 2 2