Q4 of 89 Page 45

The 11^th term of an

First term, a = - 5

Common difference,

n = 11

As we know, nth term of an AP is

a_{n =} a + (n - 1)d

where a = first term

a_n is nth term

d is the common difference

a_{11 =} - 5 + (11 - 1)(5/2)

a_{11 =} - 5 + 25

= 20

In an AP, if a = 3.5, d = 0 and n = 101, then a_n will be

The list of numbers – 10, - 6, - 2, 2, … is

The first four terms of an AP whose first term is - 2 and the common difference is - 2 are

The 21^st term of an AP whose first two terms are - 3 and 4, is

The 11th term of an