Question: the button of chossing this functionality of (solve /Numerically Solve) the equation dissapear....

hi everybody!!

i have tried to (solve /Numerically Solve)  the equation below 

x-(sin(88.61) TAN(286.13)*(45567))/(sqrt(sin(49.12)^2+2 sin(49.12) TAN(14.93) cos(49.12)+2 sin(49.12) TAN(286.13) cos (88.61)

cos(49.12)+2 TAN(14.93)^2 cos(49.12) TAN(286.13) cos (88.61) sin(49.12)+2 TAN(286.13)^2 cos^2 (88.61)^2 cos(49.12) TAN(14.93)

sin(49.12)+TAN(286.13)^2 cos^2 (88.61)^2 TAN(14.93)^2 sin(49.12)^2+TAN(286.13)^2 sin(88.61)^2+TAN(286.13)^2 sin(88.61)^2

(14.93) TAN^2-sin(49.12)^2 TAN(14.93)^2-TAN(286.13)^2 cos^2 (88.61)^2 sin(49.12)^2+TAN(14.93)^2+2 TAN(286.13) cos (88.61)

TAN(14.93)+TAN(286.13)^2 cos^2 (88.61)^2))=0   

,but the button of chossing this functionality dissapear ..may be the equation is too much long...

because in simple function like this  x^2-3x+1=0 , the functionality of (solve /Numerically Solve) work fine!!

Help !!!!!!!!!!!!