An amplitude modulated waves is represented by expression \(v_m=5(1+0.6\cos6280t)\sin(211×10^4t) \text{ volts.} \) The minimum and maximum amplitudes of the amplitude modulated wave are, respectively:
(1) 5V, 8V
(2) 5/2V, 8V
(3) 3V, 5V
(4) 3/2V, 5V