Question
Find the nth term of AP: 5, 9, 13, ... and hence find its 20th term. (NCERT Class 10, AP – Important)
Answer: a=5, d=4. nth term a_n=a+(n−1)d=5+4(n−1)=4n+1. 20th term=4×20+1=81.
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Question
Answer: a=5, d=4. nth term a_n=a+(n−1)d=5+4(n−1)=4n+1. 20th term=4×20+1=81.
Question
Answer: a=5, d=4. nth term a_n=a+(n−1)d=5+4(n−1)=4n+1. 20th term=4×20+1=81.