engineering recuitment GATE CSE 2023-24 Test Series Engineering Mathematics Combinatorics Generating Functions
What is the generating function of the sequence 4, 8, 12, 16, 20, 24 …?
1
\({\left( {\frac{2}{{1 - x}}} \right)^2}\)
2
\({\left( {\frac{2}{{1\; - \;2x}}} \right)^2}\)
3
\({\left( {\frac{2}{{1 - x}}} \right)^3}\)
4
\({\left( {\frac{4}{{1 - x}}} \right)^2}\)