When converting a point in Cartesian coordinates (x, y, z) to spherical coordinates (r, 0, 0), the latter can be calculated as follows: r(x,y,z)=x + y + z Z (x, y, z) = cos x + y+z2, (x,y,z) tan(y/x) Write a single MATLAB function that accepts values of x, y, and z as inputs and returns r, 0, and as three separate outputs. Your function should not print anything to the screen. Problem 4.7a Write a MATLAB program to test your function from Problem 4.7 by sending it the following inputs and displaying the results: a) (x, y, z) = (1, 1, 1) b) (x, y, z) = (10,0,5) Activat