y′−2=0y'-2=0y′−2=0
(64+36x4)\left(64+36x^4\right)(64+36x4)
limx→0(e3x−1ln(x+1))\lim_{x\to0}\left(\frac{e^{3x}-1}{\ln\left(x+1\right)}\right)x→0lim(ln(x+1)e3x−1)
dydx(1(2x+1)(x+1))\frac{dy}{dx}\left(\frac{1}{\left(2x+1\right)\left(x+1\right)}\right)dxdy((2x+1)(x+1)1)
arccos(350500)\arccos\left(\frac{350}{500}\right)arccos(500350)
2sin(2x)sin(−x)=02\sin\left(2x\right)\sin\left(-x\right)=02sin(2x)sin(−x)=0
−5y≤5-5y\le5−5y≤5
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