Question

Which of the following an AP a )I, - 2, 3
B) 1, 5, 9. .c) 1, 2, 4, 8. D)2,-2, 2-2​

Answer 1

Answer:

B

Step-by-step explanation:

The common difference in B is the same i.e 4

a1 = 1

a2 = a1 + (n-1)d

a2 = 1+ (2-1)(4)

a2 = 5

a3 = 1 + (3-1)(4)

a3 =9