Question

11. Which term of AP 3,7, 11,
is 71.​

Answer 1

Answer:

n = 18 , 18th term is 71

Step-by-step explanation:

tn= a+(n-1d)

71 = 3+(n-1)4

71= 3+ 4n-4

71= -1+4n

72= 4n.

n= 72/4

n= 18