Really need someone to solve these few problems using MATLAB as soon as possible. Thank you so much for your time ! PLEASE USE MATLAB TO SOLVE

Use MATLAB to solve each problem. Some of the commands you may need on this assignment are syms, int, solve, fplot, diff, subs, and double 1. (2 points) (a) Find the value of a so that (Note: When defining r and a as symbolic variables, type "syms a positive." The "positive" restricts r and a to positive values and clears up some issues when calculating.) (b) Find the value of a so that ede 37t1 t2 + 1 2" (4 points) Consider the parametric equations x = 22 + 1 , y = (a) Plot the curve for -8 t8 (b) Determine the points on the graph where the slope of the tangent ine is 2 (c) Determine the points on the graph where the graph has a horizontal tangent 3" (4 points) Consider the parametric equations x = 4 cost-cos(4t), y = 4 sin t-sin(4t) (a) Plot the curve for 0 t 2 (b) Find the equation of the tangent line at the point where t = 1 (c) Find the total length of the curve, 0 S2T