limh→π2(cos(x)cot(x))\lim_{h\to\frac{\pi}{2}}\left(\frac{\cos\left(x\right)}{\cot\left(x\right)}\right)h→2πlim(cot(x)cos(x))
4⋅10+2⋅8−624\cdot10+2\cdot8-6^24⋅10+2⋅8−62
x 2 + x −20 x+5x\:2\:+\:x\:-20\:x+5x2+x−20x+5
x32−x−32\frac{x^3}{2}-\frac{x^{-3}}{2}2x3−2x−3
(3x+2)(3x−1)\left(3x+2\right)\left(3x-1\right)(3x+2)(3x−1)
25d2−20d+25225d^2-20d+25^225d2−20d+252
5x−3=3(2x−1)−x5x-3=3\left(2x-1\right)-x5x−3=3(2x−1)−x
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