If Sum of n terms of an AP is 2n^2+n. What is the difference of its 10th and 1st term ?​

Mayuri · 7 Jul 2024

Assume n = 1

Janshi · 7 Jul 2024

You can in place of n =(n-1) 2n^2+n Tn=Sn-Sn-1 (2n^2+n)-{2(n-1)^2+(n-1)} {2n^2+n-}2n^2+4n+2+n-1} 2n^2 +n -2n^2+3n-2+1 Tn=4n-1 Tn=4×1-1=3 Tn=4×10-1=39

Prakash · 6 Jul 2024

Option se try kar