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4654646
(1/cos(x))*tan(x)
x^2*e^(2-x)
cos(sin(x^4))
(2*t^-1)/4
| -24=3y-24 | | C(x)=25000-80x+0.1x^2 | | 12x+x=4x+42 | | -11-38= | | X-(12-x)=32 | | 8x=-68 | | 16=vu | | f(x)=x^2+8x-64 | | 7x-54+3x=2-7x+12 | | 8=-4(-9) | | 2x^4-x^2-2x-3=0 | | x-300/26=Z | | -21x+9x=0 | | 12.6x-3.5x=-145.6 | | 9(t-5)+3t=4(3t+3)-11 | | 30-19x-5x^2=0 | | x+-8=-1 | | cn=(-3)n | | 6.4x-2.1x=-129 | | 79+9x=85+6x | | 2X^4+x^2+2x-3=0 | | an=(n+4)2 | | 2x+2.3=7.3 | | 2.5/x=2/0.4 | | 3x^3+9x^2-7x-4=9 | | -(4a-2)+3a-7= | | 4+88=0 | | 22*4=0 | | -1.3=1.7-3y | | -(3a-2)+2a-7= | | 5cos(x)-1=1 | | 18(6c-1)-10=106+18 |