∫e−2tdt\int e^{-2t}dt∫e−2tdt
n2−81n^2-81n2−81
∫2∞(12+x)dx\int_2^{\infty}\left(\frac{1}{\sqrt{2+x}}\right)dx∫2∞(2+x1)dx
cos2x=0cos2x=0cos2x=0
−10+5+10x-10+5+10x−10+5+10x
(2x2+3x−2)⋅(−5x+1+3x2)\left(2x^{2}+3x-2\right)\cdot\left(-5x+1+3x^{2}\right)(2x2+3x−2)⋅(−5x+1+3x2)
113a+45a−12b−8b113a+45a-12b-8b113a+45a−12b−8b
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