-x*(two *tan(x)^ two + two)*sin(x)*tan(x)/(tan(x)^ two + four)^ two + (x*cos(x) + sin(x))/(tan(x)^ two + four) = zero
minus x multiply by (2 multiply by tangent of (x) squared plus 2) multiply by sinus of (x) multiply by tangent of (x) divide by ( tangent of (x) squared plus 4) squared plus (x multiply by co sinus of e of (x) plus sinus of (x)) divide by ( tangent of (x) squared plus 4) equally 0
minus x multiply by (two multiply by tangent of (x) to the power of two plus two) multiply by sinus of (x) multiply by tangent of (x) divide by ( tangent of (x) to the power of two plus four) to the power of two plus (x multiply by co sinus of e of (x) plus sinus of (x)) divide by ( tangent of (x) to the power of two plus four) equally zero
-x*(2*tan(x) to the power of 2 + 2)*sin(x)*tan(x)/(tan(x) to the power of 2 + 4) to the power of 2 + (x*cos(x) + sin(x))/(tan(x) to the power of 2 + 4) = 0