Question

Need help on number 15 and 16 pleasee

Answer 1

15) Let n = 1 be the first term of each sequence.

`- 65536 * - 4 = 262144`

`a(n) = 262144( - { (1)/(4)) }^(n)`

`a(9) = ( {4}^(9) ) {( - (1)/(4) )}^(9) = {( - 1)}^(9) = - 1`

16)

`6 / (- 3 )= - 2`

`a(n )= ( - 2) ({( - 3)}^(n) )`

`a(9) = - 2(( { - 3)}^(9) )`

`a(9) = - 2 * - 19683 = 39366`