Question

Examine the sequence 7,13,19,25 ....is an Ap

Answer 1

yes. because, common difference in this sequence is same(13-7=6 where as 19-13=6)

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Answer 2

Answer:

Sequence => 7,13,19,25............

An AP(Arithmetic Progression) is having a sequence of numbers which is having a constant difference from the previous quantity.

Difference means second minus the first.

Let's see if sequence is AP or not,

7,13,19,25..........

Difference between =>

13 - 7 = 6

19 -13 = 6

25 - 19 = 6 and so on.

So, the difference is constant.

Therefore, it is an AP.

To know the particular place term in AP use this formula,

aₙ = a₁ + (n-1)d

To know the sum of series of particular range in AP,

Sₙ = n(a₁ + aₙ)/2

a₁ means the first term.

an means last term.