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11-72.
1. Transform the following polar equations into rectangular form. Homework Help ✎

1. r2 = cos θ sin θ

2. r = −3csc θ

Multiply both sides of the equation by r2.

$\textit{r}^4=(\textit{r}\cos\theta)(\textit{r}\sin\theta)$

Substitute the polar coordinate conversions.

(x2 + y2)2 = xy

Multiply both sides of the equation by sin θ.