If the sum of first n terms of an ap is an + bn square where a and b are constants, the common difference of ap will be
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Final answer : 2b
Understandimg:
1)a(n) = S(n) - S(n-1)
2) d = a(n) - a(n-1) :
Understandimg:
1)a(n) = S(n) - S(n-1)
2) d = a(n) - a(n-1) :
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