Question

find the 21st term of the AP 3,10,17

Answer 1

Step-by-step explanation:

We get 15 – 3, 27 – 15……  

Common difference = 12

First term of series = 3.  

Therefore, the 21st term of the series is  

Required term after adding 120 = 120 + 243 = 363.

Let

First value of the series is a = 3

Common difference = 12  

term is 363.  

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Answer 2

Step-by-step explanation:

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