jasmin963
jasmin963
27-04-2017
Mathematics
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25xy=225 convert to polar form
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jdoe0001
jdoe0001
27-04-2017
[tex]\bf x=rcos(\theta)\qquad \qquad y=rsin(\theta)\\\\ -----------------------------\\\\ 25xy=225\implies xy=\cfrac{225}{25}\implies xy=9 \\\\\\ rcos(\theta)\cdot rsin(\theta)=9\impliedby \textit{common factor} \\\\\\ r[cos(\theta)sin(\theta)]=9\implies r=\cfrac{9}{cos(\theta)sin(\theta)}[/tex]
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