Yes, LC circuit can resonate with a square wave voltage source, because square wave is a sum of sinusoid's (Fourier approximation). LC circuit resonate on the basic frequency (square wave frequency) and the other waves with higher frequency are suppress, so we can observe only the basic frequency sinusoid in LC circuit...
ues LC circuit can resonate. square wave is sum of sinusoildals whith mutliple frequencies of fundamentyal wave .. If any of these frequencies match with resonant frequency of LC, then it will resonate...