Solve the equation in exercise 5.3 (Dunnn & Constantinides) using the method of Newton Raphson method. Check your results with the fzero function.

Using matlab

5.3 The following empirical relationship is available for the light propagation through biological tissues: A-1 A+1 -1.44on" +0.710%) +0.688 +0.0636"w where A is the internal reflectance factor for a tissue, and nre is the ratio of the refractive indices of the tissue and the medium. When nrel equals 1, A reduces to unity. Find the value of nrel in order to give a reflectance factor of 4.0