C1 Sequences and series

Write down the first 4 terms of the sequence u n+1 =u n +6, u 1 =6 6, 12, 18, 24

Write down the first 4 terms of the sequence u n+1 =u n -5, u 1 =2 2, -3, -8, -13

Write down the first 4 terms of the sequence u n+1 =6-u n, u 1 =2 2, 4, 2, 4

Write down the first 4 terms of the sequence u n+1 =4u n -3, u 1 =1 1, 1, 1, 1

Write down the first 4 terms of the sequence u n+1 =3u n + 2, u 1 =3 3, 11, 35, 107

Write down the first 4 terms of the sequence u n+1 = 1 u n u 1 =2 2, ½, 2, ½

Write down the terms in each series and then find the sum 4 2r+1 r= = 24

Write down the terms in each series and then find the sum 3 4r-3 r= = 15

Write down the terms in each series and then find the sum 4 r 2 r= = 29

Write down the terms in each series and then find the sum 4 r-3 r= = -2

Write down the terms in each series and then find the sum 5 r(r-1) r= = 40

Write down the terms in each series and then find the sum 4 1 r=1 r 1 + ½ + + ¼ =

Write down the terms in each series and then find the sum 3 6 r= = 18

Write down the terms in each series and then find the sum 4 (-1) r 2r r= = 4

Write down the terms in each series and then find the sum 6 (-1) r r 2 r= = 22