11. Which term of AP 3,7, 11,
is 71.
Answers
Answered by
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
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