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Question

Verify that following is an AP, and then write its next three terms.
0,14,12,34,....

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Solution

We have,
140=14;
1214=14;

This shows that the difference of a term and the preceding term is always the same. Hence, the given sequence form an AP.

nth term tn=a+(n1)d
a= First term
d= Common difference
n= number of terms
tn=nth term

Here first term a=0 and common difference d=14
Therefore,
a5=a+4d=0+4×14
a5=0+1=1

a6=a+5d=0+5×14
a5=54

a7=a+6d=0+6×14
a7=32

Hence, the next three terms are 1,54,32

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