Question

求高手解答，算出x

26602.96=80*((10*tan(x)+0.5*12.9705)*(30-10*tan(x)-0.5*12.9705))^0.5*(10*tan(x)+0.5*12.9705-15)+18000*arcsin((((10*tan(x)+0.5*12.9705)*(30-10*tan(x)-0.5*12.9705))^0.5)/15)+3.1415/9*(12.9705+6*tan(x))^2*(4.5-12.9705-6*tan(x))+3.1415/9*(12.9705-2*tan(x))^2*(4.5-12.9705-2*tan(x));

Answer 1

syms s x
s=80*((10*tan(x)+0.5*12.9705)*(30-10*tan(x)-0.5*12.9705))^0.5*(10*tan(x)+0.5*12.9705-15)+18000*asin((((10*tan(x)+0.5*12.9705)*(30-10*tan(x)-0.5*12.9705))^0.5)/15)+3.1415/9*(12.9705+6*tan(x))^2*(4.5-12.9705-6*tan(x))+3.1415/9*(12.9705-2*tan(x))^2*(4.5-12.9705-2*tan(x))-26602.96
solve(s)

s =

80*((10*tan(x)+25941/4000)*(94059/4000-10*tan(x)))^(1/2)*(10*tan(x)-34059/4000)+18000*asin(1/15*((10*tan(x)+25941/4000)*(94059/4000-10*tan(x)))^(1/2))+6283/18000*(25941/2000+6*tan(x))^2*(-16941/2000-6*tan(x))+6283/18000*(25941/2000-2*tan(x))^2*(-16941/2000-2*tan(x))-3656282981657477/137438953472

Warning: Explicit solution could not be found.
> In solve at 140
In sym.solve at 49

ans =

[ empty sym ]
方程不对，答案借不出来。