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Question

Find whether 0 is a term of the A.P. 40, 37, 34, 31...

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Solution

Let a= first term of A.P., d= common difference nth term, an=a+(n1)d;
To find n for an=0
a+(n1)d=0
Here a=40,d=3740=3
403(n1)=0
40=3(n1)
40=3n3
3n=43
n=433 not an integer 0 not a term in A.P.

1214924_1396759_ans_732db3700e5a4d038428aa9d6c5905fa.jpg

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