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baherus [9]
3 years ago
14

Find the first 5 terms of the sequence A(n)=n+A(n-1) a1 = 3

Mathematics
1 answer:
faust18 [17]3 years ago
8 0

Answer:

A(1) = 3, A(2) = 5, A(3) = 8, A(4) = 12, A(5) = 17

Step-by-step explanation:

Given A(n) = n + A(n–1) a1 = 3.

A(1) = 3.

A(2) = (2) + A(2–1)

= (2) + A(1)

= (2) + (3) = <u>5</u>

A(3) = (3) + A(3-1)

= (3) + A(2)

= (3) + (5) = <u>8</u>

A(4) = (4) + A(4–1)

= (4) + A(3)

= (4) + (8) = <u>12</u>

A(5) = (5) + A(5–1)

= (5) + A(4)

= (5) + (12) = <u>17</u>

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