engineering recuitment NIC NIELIT Scientist B 2023 Mock Test Engineering Mathematics Combinatorics Generating Functions
What is the generating function for the sequence <2, 0, 2, 0, 2, 0...>?
1
\({2 \over 1-x}\)
2
\({2 \over 1-x^2}\)
3
\({1 \over 1-x^2}\)
4
\({1 \over 1-x}\)