The algebraic expression of an arithmetic sequence is 3-5n? Find its common difference First term Form a sequence
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Step-by-step explanation:
Put in
n
the natural number that indicate hisorder
a
1
=
5
⋅
1
−
3
=
2
a
2
=
5
⋅
2
−
3
=
7
a
3
=
5
⋅
3
−
3
=
12
a
4
=
5
⋅
4
−
3
=
17
a
5
=
5
⋅
5
−
3
=
22
Note that each term obteined has a constant difference of 5
2
+
5
=
7
7
+
5
=
12
and so on
Is an arithmetic sequence with first term 2 and difference 5
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