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MATH SOLVE
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Given the polar coordinates (-2, 3pi/2), which of the following rectangular coordinate pairs represe...
5 months ago
Q:
Given the polar coordinates (-2, 3pi/2), which of the following rectangular coordinate pairs represents the same point? A. (0,-2)B. (2,0)C.(0,2)D.(-2,0)
Accepted Solution
A:
polar coordinates (r, a)
"a" is angle in radians
x = rcos(a)
y = rsin(a)
use the given values.
x = -2cos(3pi/2)
x = 0
y = -2sin(3pi/2)
y = 2
C. (0,2)