−2(x+y2)−13-2\left(x+y^2\right)-13−2(x+y2)−13
cos(177.4767)cos\left(177.4767\right)cos(177.4767)
d2xdx2=−x\frac{d^2x}{dx^2}=-xdx2d2x=−x
x2 + 4x + 18x2\:+\:4x\:+\:18x2+4x+18
−5.82−(−7.8)-5.82-\left(-7.8\right)−5.82−(−7.8)
25−x2\:\:\:\:25-x^225−x2
limx→∞(2nn)\lim_{x\to\infty}\left(\frac{2n}{n}\right)x→∞lim(n2n)
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