limx→∞(2+x)2−4x\lim_{x\to\infty}\frac{\left(2+x\right)^2-4}{x}x→∞limx(2+x)2−4
limx→0ex−x−12x\lim_{x\to0}\frac{e^x-x-1}{2x}x→0lim2xex−x−1
2a + ab\:2a\:+\:ab2a+ab
6(32)−2v6\left(\frac{3}{2}\right)-2v6(23)−2v
sin2πx=−1sin2\pi x=-1sin2πx=−1
4(x−4)x2−2x−8=4x+4\frac{4\left(x-4\right)}{x^2-2x-8}=\frac{4}{x+4}x2−2x−84(x−4)=x+44
3x−2 2x+1+x−12x+1\frac{3x-2\:}{2x+1}+\frac{x-1}{2x+1}2x+13x−2+2x+1x−1
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