q1 using matlap

The following parametric equations generate a conical helix. x = t cos(5t) y = t sin(5t) z = t^3 Where t = 0 to 6 pi with an increment of pi/128. Using subplot, generate the plot with proper label and title. Write a program in function file to compute the value of x for any real value. For imaginary value use 'error' syntax. x = squareroot a Where a = -10, -8, 8, 10 Plot the function, f(x) = 1 - 4x - x^2, from x = 1 to 2 using fplot, and find out the approximate root by graphical method. Also find the root by using fzero