Question

state whether 1, 3, 6, 10,.... is an A. P or not? ​

Answer 1

Answer:

No

Step-by-step explanation:

It's not in AP because the difference between the terms is not equal

3-1 = 2

6-3 = 3

10-6 = 4

In AP the difference between the terms must be equal

Answer 2

Answer:

No

Step-by-step explanation:

in given series a=1

and common difference= 3-1=2

     for a3 and a2 terms d= 6-3=3

      for a4 and a3 terms d=10-6=4

hence common difference is not equal so it is not in A.P

hope you understand

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