Consider two 1D plane waves: 4(x,t) = 2ei(kx+3wt) and 42(x,t) = 5e(kx+3wt1}); 3 t = k a) Write down the amplitude and the phase of each wave at x = b) Sketch the phasors of the two waves at x = 0, t = 0 (in polar coordinates). c) Find 1+2 by adding their phasors.