MATH SOLVE

4 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)

"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)