I need help with these signals and systems problems

XIV: Let the signal x (t) = sin (2nt) be defined in the intervalt E [0, 1], such that x (t) EL [0, 1]. Calculate XV.- Let x (t) with t (-1, 1]. Determine the membership of the signal x(t) to the subspaces of the generalized continuous time signals L1 (-1, 1), L2 (-1, 1] and Loo (-1, 1). XVI: Represent graphically the following continuous time signal. (t + 1) : (1 - 1) : 0