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mihalych1998 [28]
3 years ago
7

Is the sequence 5,9,15———-an arithmetic?

Mathematics
2 answers:
Mademuasel [1]3 years ago
6 0

Answer:

No, the given sequence is not arithmetic.

Step-by-step explanation:

The given sequence is

5,9,15,....

The first term is 5.

A sequence is an arithmetic, if the difference between any two consecutive terms are same.

The difference between terms are

d_1=9-5=4

d_2=15-9=6

d_1\neq d_2

Since the difference between consecutive terms are not same, therefore given sequence is not arithmetic.

Veseljchak [2.6K]3 years ago
4 0

Answer:

5, 9, 15,....is not an arithmetic sequence.

Step-by-step explanation:

Arithmetic sequence  is a sequence in which difference between the consecutive terms is constant.

Example: 0 , 5, 10, 15, 20 is an arithmetic sequence with common difference of 5 between the terms.

Consider the given sequence,

5, 9, 15,....

Here, a_1=5\\\\a_2=9\\\\a_3=15

We first find the difference between the terms,

a_2-a_1=9-5=4

a_3-a_2=15-9=6

Since the difference is not constant .

So,it is not an arithmetic sequence.

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