Question

An=a(n-1)+5. A1=2. What are the first four terms in the sequence

Answer 1

Answer:

5

Step-by-step explanation:

We know that,

$An = a + (n - 1)d$

Answer 2

Answer:

The sequence is:

5, 10, 15, 20 ,.. ...

Step-by-step explanation:

aₙ = a(n - 1) + 5 --(1)

Here a is common difference

a = 2

put value of a in eq.--(1)

aₙ = 5(n - 1) + 5

aₙ = 5n - 5 + 5

aₙ = 5n

Put n = 1

a₁ = 5(1) = 5

Put n = 2

a₂ = 5(2) = 10

Put n = 3

a₃ = 5(3) = 15

Put n = 4

a₄ = 5(4) = 20

The sequence is:

5, 10, 15, 20 ,.. ...