Determine whether the two signals in (a)-(c) are power signals, energy signals or neither. Justify your answers. If the signal is a power signal compute Pₐᵥ and if it is an energy signal, compute Eₜₒₜ.
(a) x(t) = A sin(t), -[infinity](b) x(t) = exp(-at)u(t), a>0, -[infinity](c) x(t) = tu(t), -[infinity](d) For the signal given in part (c) above compute E ₍₂,₃₎ and Pₐᵥ₍₂,₃₎.