Q3 of 89 Page 45

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

a_{1 =} - 10

a_{2 =} - 6

a_{3 =} - 2

a_{4 =} 2

a_{2 -} a_{1 =} 4

a_{3 -} a_{2 =} 4

a_{4 -} a_{3 =} 4

a₂ - a_{1 =} a_{3 -} a_{2 =} a_{4 -} a_{3 =} 4

Therefore, its an A.P with d = 4

In an AP, if d = - 4, n = 7 and a_n = 4, then a is equal to

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

The 11^th term of an

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