5 Discussions 1. Calculate the transpose, rank, determinant, and inverse of this matrix for the following matrix: 12 2.5 1.51 A2=134 1 li 1.5 1.5 2. Write a MATLAB program to draw the following functions: a) Ramp Signal (Y(x) = t) b) Y2(x)=sin(2x) c) Y3(x)=cos(x)+2exp(2x) 3. Generate and play back a sinusoidal signal using t = 0: 1/22,050: 2: y = sin (2 pi* 400 * t): sound (y, 22050): (a) What is the significance of 22,050? (b) How long will this sound be, and how many samples will there be