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y=1/[xln(x+1)]
y=1/x

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y=cosx+arctan(7∧x)+2
y=5-sinx²+3x

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y=1020x

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y=-2((-sqrt17/126)(400+5sqrt17)+(4-(33^2+31)/(33/2*63sqrt17))(400+2sqrt17-400x)-(16/(33*63))(1600sqrt17+340-165x))+(1-x)4
y=4((-0.3)(4+5sqrt17)+(sqrt17-(33^2+31)/(24))(4+2sqrt17-4x)-(16sqrt17+34-165x)/(12))

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y=145.9x-3600;157.77x-5250;169.64x-6900;181.51x-8550;193.38x-10200;205.25x-11850;217.12x-13500;228.99x-15150;240.86x-16800;298.06x-24750;357.41x-33000;465.32x-48000;573.24x-63000;681.15x-78000;789.06x-93000