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The sequence – 10,- 6,- 2, 2, …(A) is an A.P. Reason d = – 16 (B) is an A.P. Reason d = 4 (C) is an A.P. Reason d = – 4 (D) is not an A.P. |
Answer» Correct answer is:- (B) is an A.P. Reason d = 4 Explanation :- Let the common difference be d ⇒ T1 = -10, T2 = -6 ⇒ d = T2 - T1 = -6 + 10 ∴ d = 4 Hence, the sequence is an AP with common difference as 4. Correct answer is (B) is an A.P. Reason d = 4 |
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