If it's not what You are looking for type in the equation solver your own equation and let us solve it.
D( x )
x = 0
x = 0
x = 0
x in (-oo:0) U (0:+oo)
sin(9/x) = 0
sin(9/x) = 0 <=> 9/x = pi*k_1 i k_1 należy do I
t_1 = pi*k_1
9/x-t_1 = 0
9*x^-1 = t_1 // : 9
x^-1 = t_1/9
-1 < 0
1/(x^1) = t_1/9 // * x^1
1 = (t_1/9)*x^1 // : t_1/9
9*t_1^-1 = x^1
x = 9*t_1^-1
x = 9*pi*k_1^-1 i k_1 należy do I
x = 9*pi*k_1^-1
| 10*5-5=5*5+10 | | 4(x+6)-40=-2(x+2) | | 6x+13=3(2s+3) | | 2(5h-2)=-94 | | -5x-11=3x+21 | | 3(7-3)=-4x+40 | | 2(29+6y)-3y=32 | | 3(10-3)=-4x+40 | | 4x+8=-2x+3 | | 6*1+4=10 | | 16x+15=8x+47 | | (2y-3)(2y+3)=20y-9 | | 0.25x(-3.65)= | | -13x+17y=23 | | f(x)=4/5x-8 | | 7x+8=7x-35 | | 7x+20=3x+72 | | (5x-2)(6x^2+2x-1)= | | 4(2x-1)=16power | | 4x^2-y+6=8x | | 2+8*4= | | (7+u)(5u-4)=0 | | 2m+(3n+1)=6i-8i | | 3a+a=2 | | (4x+8)(x-9)(x+3)=0 | | 1-3a=10 | | 6t^2+21-12= | | 3x-3a=10 | | 175-7x^2=0 | | (4x)^1/2*(9x)^1/2 | | (3u+3)-(3u+3)= | | -8(t-1)+2t=2+t |