4) For a message signal m(t) =2 cos(1000t) + 9 cos(2000) a) Write expressions (do not sketch) for QPM(t) and QFM(t) when A = 10, wc = 106, kƒ= 1000π, and kp = 1. For determining QFM(t), use the indefinite integral of m(t); that is, take the value of the integral at t∞o to be 0. b) Estimate the bandwidth of QPM(t) and QFM(t). 1