cotx=5cotx=5cotx=5
x3+5x2−2x+2x−1\frac{x^{3}+5x^{2}-2x+2}{x-1}x−1x3+5x2−2x+2
4m+12m−64m+12m-64m+12m−6
x2inxx^2inxx2inx
9x2+12x9x^2+12x9x2+12x
1sin2x+1\frac{1}{sin2x}+1sin2x1+1
−34 ⋅5-34\:\cdot5−34⋅5
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