sin(3x)=sinx(2cosx+1)(2cosx−1)\sin\left(3x\right)=sinx\left(2cosx+1\right)\left(2cosx-1\right)sin(3x)=sinx(2cosx+1)(2cosx−1)
4x2−12x+54x^2-12x+54x2−12x+5
y=y+1x−1y=\frac{y+1}{x-1}y=x−1y+1
(ab−7)3\left(ab-7\right)^3(ab−7)3
x5y+2x4y2+x3y3x^5y+2x^4y^2+x^3y^3x5y+2x4y2+x3y3
2x−57≥23x+42x-\frac{5}{7}\ge\frac{2}{3}x+42x−75≥32x+4
x+(x)\sqrt{x}+\sqrt{\left(\sqrt{x}\right)}x+(x)
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