$Finding the Location of -pi/2 on a Unit Circle$
Answer 1
John Anderson
To find the location of $-\pi/2$ on the unit circle, we start by understanding that angles are measured from the positive x-axis, and negative angles are measured clockwise.
For $-\pi/2$ radians, start from the positive x-axis and measure clockwise by $\pi/2$ radians (or 90 degrees). This brings us to the negative y-axis.
The coordinates of this point on the unit circle are $(0, -1)$.
So, $-\pi/2$ radians corresponds to the point (0, -1) on the unit circle.
Answer 2
Isabella Walker
To locate $-pi/2$ on the unit circle, remember that angles are measured in radians, starting from the positive x-axis.
Negative angles are measured in the clockwise direction.
Starting from the positive x-axis, move $pi/2$ radians clockwise to reach the negative y-axis.
The coordinates on the unit circle at this location are $ (0, -1)$.
Thus, the point corresponding to $-pi/2$ radians on the unit circle is (0, -1).
Answer 3
Benjamin Clark
On the unit circle, $-pi/2$ radians is located on the negative y-axis.
The coordinates are $ (0, -1)$.
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