x*(x*(tan(x)^ two + one)/ two + tan(x)/ two) + (x*tan(x))/ two = zero
x multiply by (x multiply by ( tangent of (x) squared plus 1) divide by 2 plus tangent of (x) divide by 2) plus (x multiply by tangent of (x)) divide by 2 equally 0
x multiply by (x multiply by ( tangent of (x) to the power of two plus one) divide by two plus tangent of (x) divide by two) plus (x multiply by tangent of (x)) divide by two equally zero