the algebraic form of an arithmetic sequence is 7n+3 what is its common difference?
Answers
Answered by
3
7
Step-by-step explanation:
7n+3
Putting values in n
n=1
7(1)+3=7+3=10
a=10
n=2
7(2)+3=14+3=17
a2=17
d=a2-a
d=17-10=7
d=7
Answered by
2
Answer:
=> d = 7
Step-by-step explanation:
=> An = a + (n - 1)d
=> An = a + dn - d
=> An = dn + (a - d)------------(Equation:1)
=> An = 7n + 3------------------(Equation:2)
On Comparing Equation '1' and '2', We get,
=> dn = 7n
Therefore,
=> d = 7
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