The sequence x[n] is (0.7)n u(n) and y (n) is x (n)*x (n). Then which of the following statement(s) is/are true?
1
Y(1) = 11.11
2
\(\mathop \sum \limits_{ - \infty }^\infty y\left( n \right) = \frac{{100}}{9}\)
3
|X(2)| = 2.5
4
x(∞) = ∞
The sequence x[n] is (0.7)n u(n) and y (n) is x (n)*x (n). Then which of the following statement(s) is/are true?