Question

3.
Which of the following is not an A.P.?
a) 2, 4, 6, 8, 10
b).-17, -12, -7, -2, 3, .....
c) 1.5, 4, 6.5,9,
d) 1,4,9, 16, 25,​

Answer 1

(D) because the common difference is not same for all the terms

Answer 2

Step-by-step explanation:

Which of the following is not an A.P.?

a) 2, 4, 6, 8, 10, ………….. b) –17, –12, –7, –2, 3, …………..

c) 1.5, 4, 6.5, 9, …………. d) 1, 4, 9, 16, 25, ……