What is the Cartesian form of $(100,(7pi )/12)$ ?

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Answer 1 · 2015-11-28T01:19:14

$x=rcostheta$
$y=rsintheta$

First, note that $(7pi)/12$ is in Quadrant II which means the x-coordinate will be negative and the y-coordinate positive .

Using the identity above ...

$x=100cos((7pi)/12)~~-25.88$
$y=100sin((7pi)/12)~~96.59$

Cartesian Form: $(-25.88,96.59)$

hope that helped

What is the Cartesian form of (100,(7pi )/12)(100,(7pi )/12)?