sin(x)1−cos(x)=cot(x2)\frac{\sin\left(x\right)}{1-\cos\left(x\right)}=\cot\left(\frac{x}{2}\right)1−cos(x)sin(x)=cot(2x)
(5 ⋅ 6) − (1⋅ 6)\left(5\:\cdot\:6\right)\:-\:\left(1\cdot\:6\right)(5⋅6)−(1⋅6)
x2+16xx^2+\frac{16}{x}x2+x16
log4x−log3=3\log4x-\log3=3log4x−log3=3
9(−5w+2)+3(2w−4)9\left(-5w+2\right)+3\left(2w-4\right)9(−5w+2)+3(2w−4)
limx→4(1+2xx−2)\lim_{x\to4}\left(\frac{\sqrt{1+2x}}{\sqrt{x}-2}\right)x→4lim(x−21+2x)
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