a6−b8a^{6}-b^{8}a6−b8
limx→∞2x3x−1\lim_{x\to\infty}\frac{2^x}{3^{x-1}}x→∞lim3x−12x
−15−(−6)+(−7)−(3)-15-\left(-6\right)+\left(-7\right)-\left(3\right)−15−(−6)+(−7)−(3)
x2−25x+425=−1+425x^2-\frac{2}{5}x+\frac{4}{25}=-1+\frac{4}{25}x2−52x+254=−1+254
limx→02−2cos(x)sin(4x)\lim_{x\to0}\frac{2-2\cos\left(x\right)}{\sin\left(4x\right)}x→0limsin(4x)2−2cos(x)
−80−2-\frac{80}{-2}−−280
14⋅14⋅414\cdot14\cdot414⋅14⋅4
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