Find the third term of the sequence whose general term is a sub n equals the quotient of the product of negative 1 raised to the n plus 1 power and 2 to the nth power and the quantity n plus 1...

Question

Find the third term of the sequence whose general term is  , n = 1, 2, 3, ....

A
B
C
D

Answer 1

D) 1/3

a3 = (-1)^4(2^3)/4! = 8/4(3)2) = 1/3