Check whether 51 is a term of the AP 5, 8, 11, 14, ......?
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..........................................
Answered by
0
Answer:
Given series is 5,8,11,14,....
Let 51 be the n
th
term.
∴a
n
=51
a=5,d=3
We know, a
n
=a+(n−1)d
∴51=a+(n−1)d
51=5+(n−1)3
3
46
=n−1
3
46+3
=n
n=
3
49
Since n is not a natural no.
51 is not a term of AP.
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