Question

4 Find weather
the
following
are in an
A.P or no


3,1,-1, 3......
​

Answer 1

no because common difference between 3 and 1 is of -2 but between -1 and 3 is of 4 so it's not an ap

Answer 2

Answer:

To check whether it is an AP or not

1-3 = -2

-1-1 = -2

3-(-1) = 4

No it's not an AP

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