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Vesnalui [34]
3 years ago
5

Find the rectangular coordinates of the point. (-5, -180°)

Mathematics
1 answer:
o-na [289]3 years ago
4 0
\bf \begin{array}{rlclll}
(-5&,&-180^o)\\
\uparrow &&\uparrow \\
r&&\theta 
\end{array}\quad 
\begin{cases}
x=rcos(\theta )\\
\qquad -5\cdot cos(-180^o)\\
\qquad -5\cdot -1\\
\qquad 5\\
----------\\
y=rsin(\theta )\\
\qquad -5\cdot sin(-180^o)\\
\qquad -5\cdot 0\\
\qquad 0
\end{cases}\implies (5,0)
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