1. Task 7 Program the function X(t) and plot it in MATLAB. Add titles, labels, and grid. x(t) = 8/(12) * (sin(2* * 10t) - (1/3) sin(2 * 7 * 30 *t) + (1/52) * sin(2 * 7*50*t) - (1/72) * sin(2 * 7 * 70*t) + (1/92) * sin(2 * T * 90-t) - (1/11%) * sin(2 * 7 * 110 - t) + (1/13) * sin(2 * t130. t) - (1/152) + sin(2 - T150.t) + (1/172) + sin(2 - pi - 170 . t)) 2. Task 2 Process the signal x(t) with the FFT MATLAB algorithm. Plot it in MATLAB. Add titles, labels, and grid. 3. Task 3 Add a random noise to the triangular sinusoidal signal [+ 0.01 - randn(size(t))]. Plot it in MATLAB. Add titles, labels, and grid. 4. Task 4 Process the signal x(t) appended with the random noise with the EFT MATLAB algorithm. Plot it in MATLAB. Add titles, labels, and grid