5x−13>−15x+75x-13>-15x+75x−13>−15x+7
3x+4x2−8x+3x2−(5x2−9x)+(2x−x2)3x+4x^2-8x+3x^2-\left(5x^2-9x\right)+\left(2x-x^2\right)3x+4x2−8x+3x2−(5x2−9x)+(2x−x2)
5[4(2+n)+7(n+1)]5\left[4\left(2+n\right)+7\left(n+1\right)\right]5[4(2+n)+7(n+1)]
sin2(x)=2tan(x)1+2tan(x)\sin^2\left(x\right)=\frac{2\tan\left(x\right)}{1+2\tan\left(x\right)}sin2(x)=1+2tan(x)2tan(x)
x2−3x+7<4x−3x^2-3x+7<4x-3x2−3x+7<4x−3
dydx(y(x2+100)=2xy)\frac{dy}{dx}\left(y\left(x^2+100\right)=2xy\right)dxdy(y(x2+100)=2xy)
∫3csc(5x)dx\int3csc\left(5x\right)dx∫3csc(5x)dx
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