what is the common difference of an A.P.whose n^th term is tn=3n+7. ( ans is 3)
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nth term of an AP is Tn = a + (n-1)d
= dn + (a-d).
i.e., coefficient of n is common difference.
Comparing with given term, coefficient of n is 3.
Therefore common difference is 3
= dn + (a-d).
i.e., coefficient of n is common difference.
Comparing with given term, coefficient of n is 3.
Therefore common difference is 3
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