An arithmetic progression is written in the following way
The sum of all the terms of the $1 0^{th}$ row is_______

Question

An arithmetic progression is written in the following way The sum of all the terms of the 1 0 th row is_______

TestHub · Accepted Answer

​ 2 , 5 , 11 , 20 , … .. General term = 2 3 n 2 − 3 n + 4 ​ ​ T 10 ​ = 2 3 ( 100 ) − 3 ( 10 ) + 4 ​ = 137 10 terms with c.d. = 3 sum = 2 10 ​ ( 2 ( 137 ) + 9 ( 3 )) = 1505 ​ ​

Mathematics - Sequence & Series Question with Solution | TestHub

Doubts & Discussion