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3*cos(3.14)
3*sin(3.14)
8*x^2-y^3-5
(ln(5*x-2))^0.5
cos(a)
| -x+2(2-7x)-(10+9x)=3x-5+8 | | 4y=8-6y | | 8x^2+15=47 | | 3u=5u-12 | | 2ln(x+4)-6ln(x)= | | 2(k-5)= | | 3x-20=9x+3 | | 7x+40=130 | | 2*x^2+6*x-8=0 | | x(x-1)=4x | | 4+x=-x-8 | | m^2+8.18182m+10.9091=0 | | mx+2x-1=0 | | 6x-3x=-8-4 | | 4+7ln(x)=67 | | sin(2pix)=1 | | 4d+2=2d+16 | | (x+200)+550= | | -3x-4y=-33 | | 1/4•1/7÷2 | | 15+4x=10-6x | | f(x)=6x^2+3 | | 9(x-7)=-24 | | 9(x-7)=24 | | -12=2-7x | | 1+10*5= | | 25.73+35x=x | | X/240x5/1=10 | | 0.25x=8000 | | 4/7*x=2/5*34-x |