To convert polar coordinates to rectangular coordinates, we can use the formulas:
- x = r * cos(θ)
- y = r * sin(θ)
Here, the polar coordinates given are (r, θ) = (3, 3π/2). In this case, r = 3 and θ = 3π/2 radians.
Now, we calculate the x and y coordinates:
- x = 3 * cos(3π/2)
- y = 3 * sin(3π/2)
We know that:
- cos(3π/2) = 0
- sin(3π/2) = -1
Substituting these values in, we get:
- x = 3 * 0 = 0
- y = 3 * (-1) = -3
Therefore, the rectangular coordinates are (0, -3).