CPM Homework Help : PC3 Problem 11-74

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Home > PC3 > Chapter 11 > Lesson 11.1.4 > Problem 11-74

11-74.

Rewrite each of the following equations in rectangular form.

$r = 6\sec(θ)$
Step 1(a):
$r=\frac{6}{\cos(\theta)}$
Step 2(a):
$r\cos(\theta)=6$

$r + 3\sin(θ) = 0$
Hint (b):
In order to rewrite the equation, you need $r^{2}$ and $r\sin(θ)$ .
Multiply both sides of the equation by $r$ .

$r(2\cos(θ) + \sin(θ)) = 4$
Hint (c):
Distribute the $r$ .

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