two *(- two *sin(two *x) - two *cos(two *x)/(x - one) + sin(two *x)/(x - one)^ two)/(x - one) = zero
2 multiply by ( minus 2 multiply by sinus of (2 multiply by x) minus 2 multiply by co sinus of e of (2 multiply by x) divide by (x minus 1) plus sinus of (2 multiply by x) divide by (x minus 1) squared ) divide by (x minus 1) equally 0
two multiply by ( minus two multiply by sinus of (two multiply by x) minus two multiply by co sinus of e of (two multiply by x) divide by (x minus one) plus sinus of (two multiply by x) divide by (x minus one) to the power of two) divide by (x minus one) equally zero