0 votes 0 votes The highest frequency present in the signal $x(t)$ is $f_{max}$. The highest frequency present in the signal $y(t)=x^2(t)$ is $\frac{1}{2}f_{max}$ $f_{max}$ $2f_{max}$ $4f_{max}$ Others gate2015-in + – Milicevic3306 asked Mar 26, 2018 • edited Nov 23, 2020 by soujanyareddy13 Milicevic3306 7.9k points answer See all 0 reply