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(pi/8)*cos(x)-sin(x)
(x^2+1)/((1-x^2)^2) = 0;x
x
1*x^3+4*x^2+1*x-26 = 0;x
x
(x^2+1)/((x^2-1)^2) = 0;x
x
(ctg(x))^(1/2)
| 11-(14+5b)= | | 5x=76-6x | | 2(61-2y)+4y=122 | | 15.5t+9=t-344.8 | | -x+2=4x-7 | | -16x-5=5+11x | | 15/.25s | | x+7=6+x | | 2n-10=3n+15 | | (7y-5)=0 | | x+238=675 | | 3(6-2x)=4(2x-3)-8 | | 6+4x+2x=2x-6x-4 | | -7r+4.9=r+204.1 | | 80=-12d+20 | | 28.5=38n | | f(x)=6x^3+5x^2-x+c | | 30x=35 | | 25t=31.25 | | 11-(14+5b)=0 | | 6x^2b=216 | | (V+7)(3v+2)=0 | | -13=-5+8x | | -11=1.8x+32 | | 3/4b-6=-4(1/2b-2) | | 6+4x+3x=2x-6x-4 | | (x-2)^(5/2)=243 | | 6y+z=8 | | (4b+1)(4b+2)= | | 4.6(x-3)=-.4x+16.2 | | 5y^2-100=145 | | log(x)-0.017x-0.3=0 |