Question

if Sn = 4n²-3n then the common difference of the AP is


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Answer 1

Answer:

a1 = 4(1)²-3(1)

= 4-3=1

a2=4(2)²-3(2)

= 4(4)-6

=16-6=10

common difference = a2-a1

= 10-1 =9