Answer:
No, the given sequence is not arithmetic.
Step-by-step explanation:
The given sequence is
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
Since the difference between consecutive terms are not same, therefore given sequence is not arithmetic.
Answer:
The explicit formula for Arithmetic Sequence is
Step-by-step explanation:
Given: Foot length & shoe size in AP.
is foot length and n is shoe size.i.e.,
To find: Formula for Arithmetic sequence .i.e.,
From question,
Also, we know that
Now, consider
Thus using formula of we get,
Therefore, The explicit formula for Arithmetic Sequence is