3x2+3(−8x+16)−13(x−3)=33x^2+3\left(-8x+16\right)-13\left(x-3\right)=33x2+3(−8x+16)−13(x−3)=3
−3x3−9x −3x3+9x -3x^3-9x\:-3x^3+9x\:−3x3−9x−3x3+9x
limx→∞((3x+cos(x))2x+sin(x)+2)\lim_{x\to\infty}\left(\frac{\left(3x+cos\left(x\right)\right)}{2x+sin\left(x\right)+2}\right)x→∞lim(2x+sin(x)+2(3x+cos(x)))
12+2(−1)+51^2+2\left(-1\right)+512+2(−1)+5
6x − 5z −3x + 6y − 8z − 12x − 3y + 4z +y −3x +11z\:6x\:-\:5z\:-3x\:+\:6y\:-\:8z\:-\:12x\:-\:3y\:+\:4z\:+y\:-3x\:+11z6x−5z−3x+6y−8z−12x−3y+4z+y−3x+11z
csc(2x)= sec(x)2sin(x)\csc\left(2x\right)=\:\frac{\sec\left(x\right)}{2\sin\left(x\right)}csc(2x)=2sin(x)sec(x)
1≥4+5x1\ge4+5x1≥4+5x
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