for three calues of x and y, confirm that ln(x/y) = ln x - ln y

create an anonymous function for y = sin(x+2) - .5 over the range ... fub akk the zeros in the interval

Create a primary function that uses a function handle with a nested function to compute the minimum point (x,y) of the function 2x^2 – 4x – 1 ov er the range -3<x<5