Question

2. The nth element of the sequence -1, 2-4,8.... is
(a) (-1)n2n-1
(b) 2n-1
(c) 2n
(d) none of​

Answer 1

Answer:

$2n - 1$

.................

Answer 2

B) is correct option.

B) is correct option.B) 2n-1