Question

3
418) If
1+2+3+4+5+... upto n terms
1x2+2x3+3 x 4+4x5+... upto n terms 3/22
Find the value of n.​

Answer 1

Answer:

$n = 99$

$refer \: to \: the \: attachment$

Answer 2

Answer:

320 is the value of n bro pls follow me and mark me as brainliest answer