Question

Tn=31,a=1,d=3,n=?
with explaination​

Answer 1

Step-by-step explanation:

hence this is the answer for your question

Answer 2

Answer:

Tn=a+(n-1)d

31=1+(n-1)3

30=(n-1)3

10=(n-1)

n-1=10

n=11

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