If (mn – 1)2 = (mn)2 + 1 + 2y, then y = ____ .
If the (p+q)th term of a G.P. is m and (p−q)th term is n, then pth term will be _____.
If (p+q)th term of a G.P. be m and (p−q)th term be n, then the \(p^{th}) term will be