Question
Find nth term of AP 5,9,13,... and its 20th term.
Answer: a=5,d=4 ⇒ a_n=4n+1 ⇒ a_20=81.
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Question
Answer: a=5,d=4 ⇒ a_n=4n+1 ⇒ a_20=81.
Question
Answer: a=5,d=4 ⇒ a_n=4n+1 ⇒ a_20=81.