sin(b)sin(x+b)+cos(b)cos(x+b)=cos(x)\sin\left(b\right)\sin\left(x+b\right)+\cos\left(b\right)\cos\left(x+b\right)=\cos\left(x\right)sin(b)sin(x+b)+cos(b)cos(x+b)=cos(x)
x2−x=x4−9\frac{x}{2}-x=\frac{x}{4}-92x−x=4x−9
3sin(x)−sin(x)3\sin\left(x\right)-\sin\left(x\right)3sin(x)−sin(x)
200+2.33⋅50200+2.33\cdot50200+2.33⋅50
(−1x)4\left(-\frac{1}{x}\right)^4(−x1)4
dydx(y2+sin−1(y)=2x)\frac{dy}{dx}\left(y^2+sin^{-1}\left(y\right)=2x\right)dxdy(y2+sin−1(y)=2x)
−2c=12-2c=12−2c=12
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