limx→−∞(49x2+xx)\lim_{x\to-\infty}\left(\frac{\sqrt{49x^2+x}}{x}\right)x→−∞lim(x49x2+x)
14−243+6214-\frac{24}{3+\frac{6}{2}}14−3+2624
21⋅222^1\cdot2^221⋅22
93⋅339^3\cdot3^393⋅33
y′+ytan(x)=sin(2x)y'+y\tan\left(x\right)=\sin\left(2x\right)y′+ytan(x)=sin(2x)
dydx−2y=e3⋅x\frac{dy}{dx}-2y=e^{3\cdot x}dxdy−2y=e3⋅x
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