Question

In an arithmetic progression if
An=5n - 3, find the common difference of the progression?
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Answer 1

Answer:

an=5n-3

a1=5(1)-3

=5-3=2

a2=5(2)-3

=10-3=7

common difference(d)=a2-a1

=7-2

=5

therefore common difference(d)=5