22 36( ) ( )11 913 11 9 13 2 4 13 22 36 35 36

30.100 3000

c) Ta có: ( 3.4.2

16

) (

2

= 3.2 .2

2 16

) (

2

= 3.2

18

)

2

= 3 . 2

2

( )

18 2

= 3 .2

2 36

( ) ( )

11 913 11 9 13 2 4 13 22 36 35 36