Mathematics, 05.02.2020 08:54 han68
Apoint has polar coordinates (r, ф) and rectangular coordinates (x, y). if you know r and y, then:
a) it is not possible to calculate the polar or cartesian coordinates
b) possible to get the polar coordinates but not the cartesian coordinates
c) possible to get cartesian coordinates, but not polar coordinates
d) possible to get cartesian coordinates and polar coordinates
Answers: 3
![\bf \begin{cases} y=rsin(\theta )\\ x=rcos(\theta ) \end{cases} \\\\[-0.35em] ~\dotfill\\\\ y=rsin(\theta )\implies \cfrac{y}{r}=sin(\theta )\implies sin^{-1}\left( \cfrac{y}{r} \right)=\theta](/tpl/images/0503/3393/b8338.png)
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Apoint has polar coordinates (r, ф) and rectangular coordinates (x, y). if you know r and y, then: <...
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