Question

The 10th term of the sequence 2 3, 12, 27......Is 3n .Find value of n

Answer 1

A=2
D=1
Formula used here:- l = a+(n-1) d
According to question :- 3n=2+(n-1)1
3n=2+n-1
3n=1+n
3n-n=1
2n=1
n=1\2.
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