# Q : 4      Which of the following are APs ? If they form an AP, find the common difference d and write three more terms.              (iii)

Given series is

Now,
first term to this series is = -1.2
Now,

We can clearly see that difference between terms are equal  and equal to -2
Hence, given series is in AP
Now, next three terms are

Therefore, next three terms of given series are  -9.2,-11.2,-13.2

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