Question

find the 10th term of A.P 2,7,12---------

Answer 1

an=a+(n-1)d
a=2
d=5
an=2+9×5
an=47
...............

Answer 2

n = 10
a = 2
d = a2 - a1 = 7 - 2 = 5
an = a + (n-1)d
= 2+ (10-1)5
= 2+ 9*5
= 2 + 45
= 47

Thus the 10th term is 47

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