cos(2*x) cos(3*x) cos(4*x) cos(5*x) cos(6*x) cos(7*x) cos(8*x) cos(9*x) cos(10*x) cos(11*x) cos(12*x)
-------- + -------- + -------- + -------- + -------- + -------- + -------- + -------- + --------- + --------- + --------- + cos(x)
2 3 4 5 6 7 8 9 10 11 12
$$\cos{\left(x \right)} + \frac{\cos{\left(2 x \right)}}{2} + \frac{\cos{\left(3 x \right)}}{3} + \frac{\cos{\left(4 x \right)}}{4} + \frac{\cos{\left(5 x \right)}}{5} + \frac{\cos{\left(6 x \right)}}{6} + \frac{\cos{\left(7 x \right)}}{7} + \frac{\cos{\left(8 x \right)}}{8} + \frac{\cos{\left(9 x \right)}}{9} + \frac{\cos{\left(10 x \right)}}{10} + \frac{\cos{\left(11 x \right)}}{11} + \frac{\cos{\left(12 x \right)}}{12}$$
cos(2*x)/2 + cos(3*x)/3 + cos(4*x)/4 + cos(5*x)/5 + cos(6*x)/6 + cos(7*x)/7 + cos(8*x)/8 + cos(9*x)/9 + cos(10*x)/10 + cos(11*x)/11 + cos(12*x)/12 + cos(x)