# What is the Cartesian form of ( 2 , ( - 15pi)/4 ) ?

Feb 3, 2016

(1.414,1.414)

#### Explanation:

we know,

$x = r \cos \theta = 2 \cos \left(\frac{- 15 \pi}{4}\right)$

$= 1.414$

$y = r \sin \theta = 2 \sin \left(\frac{- 15 \pi}{4}\right)$

$= 1.414$