Question

-18,-16,-14 which of the term is +4​

Answer 1

Answer:

a=-18

d= -16-(-18) = -16+18= 2

tn= 4

n=?

Therefore, this is an A.P

tn= a+(n-1)d

4 = -18 + (n-1)2

4 = -18+2n -2

4 = -20+ 2n

2n= 4+20

n = 24/2

n= 12

Therefore, 12th term of an A.P is +4.

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