find the 11th term from the last of the A.P series given below A. p=10,7,4,.......,-64
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take the given ap in reverse order
a=-64,d=+3
then we know that nth term of A.P =a+(n-1)d
so-64+(11-1)+3
an=-64+30
=-34
a=-64,d=+3
then we know that nth term of A.P =a+(n-1)d
so-64+(11-1)+3
an=-64+30
=-34
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