Q. 125.0( 2 Votes )

Is 56 a term of the A.P.

Answer :

AP


Here, a = 4 and


Let 56 be a term, say, nth term of this AP.


We know that


an = a + (n – 1)d


So,


2 × (56 – 4) = n – 1


2 × 52 = n – 1


104 = n – 1


105 = n


Hence, 56 is the 105th term of this given AP.


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