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13-07-2018
Mathematics

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Find the first, fourth, and eighth terms of the sequence. A(n) = –3 • 2n–1

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Аноним Аноним

13-07-2018

first term n= 1

A(1) = -3. 2 (1)-1

= -3. 2(1)-1

= -3 .2-1

= -3. 1

= -3

fourth term n = 4

A(4) = -3. 2(4) -1`

= -3. 8 -1

= -3 . 7

= -21

8th term n = 8

A(8) = -3 .2(8) -1

= -3. 16-1

= -3. 15

= -45

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