Question

The sum of m terms of the series √2+√8+√18+√32+•••••••• is given by ???

Answer 1

it can be written as
√2+2√2+3√2+...

sum of m terms is ( m/2)(2√2+ ( m-1 ) √2) = ( m/√2 ) ( m+1 )

Answer 2

i had solve right now is correct or wrong