10+101010+\frac{10}{10}10+1010
4−8x+4x−4−5−10x4-8x+4x-4-5-10x4−8x+4x−4−5−10x
x4−x2−20x^4-x^2-20x4−x2−20
2+x>162+x>162+x>16
4cos3(x)+2cos2(x)−2cos(x)−1=04\cos^3\left(x\right)+2\cos^2\left(x\right)-2cos\left(x\right)-1=04cos3(x)+2cos2(x)−2cos(x)−1=0
tan(x)(−sec(x))tan\left(x\right)\left(-sec\left(x\right)\right)tan(x)(−sec(x))
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