Q. 4 B4.1( 7 Votes )

# Write the first f

Answer :

Given,

a1 = 1 = a2, an = an–1 + an–2, 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 = 1

When n = 2:

a1 = 1

When n = 3:

a3 = a3–1 + a3–2

a3 = a2 + a1

a3 = 1 + 1

a3 = 2

When n = 4:

a4 = a4–1 + a4–2

a4 = a3 + a2

a4 = 2 + 1

a4 = 3

When n = 5:

a5 = a5–1 + a5–2

a5 = a4 + a3

a5 = 3 + 2

a5 = 5

First five terms of the sequence are 1, 1, 2, 3, 5.

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