Page 261 - aljaber

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(.)

: 1, 1 , 1 , 1 , … ()

4 9 16

( ) ()

() ( )

. 31 110 20 ()

3() 2( ) −1 ( ) −2 ( )

an = 71 − 7n {bn } {an } ()
2 ()

.bn = 2 ×(−3)n−1
()

()
{bn } {an } ( )
{bn } {an } ( )

[MAΘ 1991]

46 18

4 () 1( ) 2( ) 1 ()

3 3 3
4 [MAΘ 1992]
()
. 16