Q. 4 C

# Write the first f

Answer :

Given,

a1 = 2 = a2, an = an–1 – 1, n>2

We can find the first five terms of a sequence by putting values of n

from 1 to 5

When n = 1:

a1 = 2

When n = 2:

a1 = 2

When n = 3:

a3 = a3–1 – 1

a3 = a2 – 1

a3 = 2 – 1

a3 = 1

When n = 4:

a4 = a4–1 – 1

a4 = a3 – 1

a4 = 1 – 1

a4 = 0

When n = 5:

a5 = a5–1 – 1

a5 = a4 – 1

a5 = 0 – 1

a5 = -1

First five terms of the sequence are 2, 2, 1, 0, -1.

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