0 votes 0 votes Choose the function $f(t); – \infty < 1 < \infty,$ for which a Fourier series cannot be defined. $3 \sin (25 t)$ $4 \cos (20 t+3)+2 \sin (710 t)$ $\exp (-|t|) \sin (25 t)$ $1$ Others gate2005-ec + – admin asked Sep 22, 2022 • edited Nov 30, 2023 by makhdoom ghaya admin 46.4k points 109 views answer comment Share Follow See all 0 reply Please log in or register to add a comment.