0 0 votes The Fourier series expansion of $x^{3}$ in the interval $-1 \leq x < 1$ with periodic continuation has only sine terms only cosine terms both sine and cosine terms only sine terms and a non – zero constant Complex Variables gateme-2022-set1 calculus fourier-series + – ♦Arjun 376 views answer comment Share Follow Add Sync Questions 0 reply Please log in or register to add a comment.