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Q12 of 202 Page 9

The nth term of an A.P. is 6n+2. Find the common difference.

a_n= 6n + 2

Put n = 1

A₁= 6(1) + 2 = 8

Put n = 2

A₂= 6(2) + 2 = 14

Common difference, d = a₂ – a₁ = 14 – 8 = 6

More from this chapter

10

Find out which of the following sequences are arithmetic progressions. For those which are arithmetic progressions, find out the common difference.

(i)

(ii)

(iii)

(iv)

(v)

(vi)

(vii)

(viii)

(ix)

(x)

(xi)

(xii)

11

Find the common difference of the A.P. and write the next two terms:

(i)

(ii)

(iii)

(iv)

(v)

1

Find:

(i) 10^th term of the A.P.

(ii) 18^th term of the A.P.

(iii) n^th term of the A.P.

(iv) 10^th term of the A.P.

(v) 8^th term of the A.P.

(vi) 11^th term of the A.P.

(vii) 9^th term of the A.P.

2

(i) Which term of the A.P. is 248?