limx→∞(e−x)⋅cos(x)\lim_{x\to\infty}\left(e^{-x}\right)\cdot\cos\left(x\right)x→∞lim(e−x)⋅cos(x)
csc(x)cot(x)=(cos(x))3(sin(x))2+cos(x)\csc\left(x\right)\cot\left(x\right)=\frac{\left(\cos\left(x\right)\right)^3}{\left(\sin\left(x\right)\right)^2}+\cos\left(x\right)csc(x)cot(x)=(sin(x))2(cos(x))3+cos(x)
(x2−6)4x\left(x^2-6\right)^4x(x2−6)4x
9−x=2\sqrt{9-x}=29−x=2
1+2+3−20+15−78+51+2+3-20+15-78+51+2+3−20+15−78+5
dydx(−xy)\frac{dy}{dx}\left(\frac{-x}{y}\right)dxdy(y−x)
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