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{ n } 1 ; d ; { bn } b 1 ; q ;
an +1= an + d bn +1= bn q
1Î R; d Î R; b 1¹0; q ¹0;
an = a 1+(n -1) d bn = b 1 qn -1
an +1+ an -1=2 an bn +1 bn -1= bn 2 (bn ¹0)
n
(0<| q |<1)

6. . .

.

1 ( ): f () = 0, 0 , x 0 .

.

 

2 ( ): f () = 0, e >0 d >0, , Î , ¹ 0, | x - 0|< d, | f (x)- A |< e.

 

1: .

 

3 ( ): () f () = 0, 0 n () 0, . .

 

4 ( ): () f () = 0, e >0 d >0, , Î , ¹ 0, 0< x < 0+ d ( 0+ d < x < 0), | f (x)- A |< e. .

 

2: f () = 0 , , .

 

5: f () +¥ ( -¥), , n () .

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: 2015-09-20; !; : 336 |


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