Question

Which of the following is not an A.P. ?
(A) - 1.2, 0.8, 2:8, ...
(B) 3, 3 + 2,3 + 2/2,3 +3√2, .
(C) 4/3 , 7/3, 9/3, 12/3
(D) -1/5, -2/5, -3/5​

Answer 1

(B) is not an A.P.

THIS IS BECAUSE COMMON DIFFERENCE IS NOT EQUAL.

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Answer 2

Answer:4/3, 7/3, 9/3, 12/3

Step-by-step explanation:

7/3-4/3=1

9/3-7/3=2/3

Therefore, common difference is not same . So it is not an AP.