Q. 5 B3.7( 9 Votes )

Find the nth term of each of the following AP’s:

16, 9, 2, - 5, ...

Answer :

Here, First term = a = 16

Common difference = d = 9 - 16 = - 7


To find = nth term


Using the formula for finding nth term of an A.P.,


an = a + (n - 1) × d


an = 16 + (n - 1) × (-7)


an = 16 - 7n + 7 = 23 - 7n


nth term of the given AP is (23 - 7n).


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