5n+4−9−2n5n+4-9-2n5n+4−9−2n
2x−1x−1 x→1_{\:\frac{2x-1}{x-1}\:x\to1}x−12x−1x→1
lnx=7\ln x=7lnx=7
22+−3⋅52^2+-3\cdot522+−3⋅5
2,15−2,432,15-2,432,15−2,43
8−108−5\frac{8^{-10}}{8^{-5}}8−58−10
9k4 + 36k2 + 369k^4\:+\:36k^2\:+\:369k4+36k2+36
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