find the sum of first 20terms of the arithmetic progression 3,8,13….​

2 thoughts on “find the sum of first 20terms of the arithmetic progression 3,8,13….​”

1. Answer:

   1010

   Step-by-step explanation:

   AP =3,8,13

   A=3,D=5,N=20

   Sum=n/2(2a+(n-1)d)

   20/2(3)+(20-1)5)

   10(6+(19)5)

   10(6+95)

   10(101)

   Sum=1010

   Hope this will help you❣️

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2. Answer:

   hope it helps you champion

   Reply