limx→−2(6x+52−14−5x)\lim_{x\to-2}\left(\frac{6x+5}{2-\sqrt{14-5x}}\right)x→−2lim(2−14−5x6x+5)
(− 1 − 8) : (− 3) + (9 − 2 . 5) . (− 2) . (− 2) \left(-\:1\:-\:8\right)\::\:\left(-\:3\right)\:+\:\left(9\:-\:2\:.\:5\right)\:.\:\left(-\:2\right)\:.\:\left(-\:2\right)\:(−1−8):(−3)+(9−2.5).(−2).(−2)
2ab+c = 2 ab+c\frac{2a}{b+c}\:=\:2\:\frac{a}{b+c}b+c2a=2b+ca
(1 2x+16 y+13 )2\left(\frac{1}{\sqrt{\:2}}x+\frac{1}{\sqrt{6\:}}y+\frac{1}{\sqrt{3\:}}\right)^2(21x+61y+31)2
20+s2−9s20+s^2-9s20+s2−9s
limx→0(er2−19)\lim_{x\to0}\left(e^{r^2}-19\right)x→0lim(er2−19)
23(−2)+62^3\left(-2\right)+623(−2)+6
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