Given: nth term of series is
Put n=1, 2, 3, 4 in nth term, we get first (a1), Second (a2), Third (a3) & Fourth (a4) term.
First four terms of given series are
Given: nth term of series is
Put n=1, 2, 3, 4 in nth term, we get first (a1), Second (a2), Third (a3) & Fourth (a4) term.
First four terms of given series are