Mathematics, 06.11.2019 21:31 panda6775
Convert the rectangular equation to a polar equation, 9x+y=10
Answers: 3
![\bf 9x+y=10\qquad \begin{cases} x=rcos(\theta)\\ y=rsin(\theta) \end{cases}\quad thus\quad 9rcos(\theta)+rsin(\theta)=10 \\\\\\ \textit{polar equations are in }\theta\textit{ terms, thus} \\\\\\ r[9cos(\theta)+sin(\theta)]=10\implies r=\cfrac{10}{9cos(\theta)+sin(\theta)}](/tpl/images/0362/6022/61a58.png)
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