1. Program a function that calculates the integrand. 2. Use the MATLAB quad function in order to calculate the integral numerically. The length L of the main supporting cable of a suspension bridge can be calculated by L = 2 4h2 1/2 1+ 0 4 dox a y h where a is half the length of the bridge and h is the distance from the deck to the top of the tower where the cable is attached. Determine the length of a bridge with a = 80 m and h = 18 m.