CBSE Class 10 Answered
Which of the following are A.P's? If they form an AP, find the common difference d.
(1) 4, 0, -4, -8, -12, ...
(2) -2, 0, 2, 5, 8, 10, ...
Asked by Topperlearning User | 21 Sep, 2017, 02:32: PM
Expert Answer
The common differenceis the same every time.
So, the given list of numbers form an AP with the common difference 
.
(ii) -2, 0, 2, 5, 8, 10, ...
Here we see that 
is not same every time.
Either it is 2 or 3. So, the given list of numbers do not form an AP.
Answered by | 21 Sep, 2017, 04:32: PM
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