"Area &= \\int_a ^b f(x)dx\\\\\n", " &\\approx \\frac{\\Delta{x}}{3} \\left( y_0 + 4y_1 + 2y_2 + 4y_3 + 2y_4 + \\dots +4y_{n-1} +y_n \\right)\\ \\ \\ \\ \\ \\text ...