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Terminal point: (0, 1); sinФ = 1 ⇒ A
How do you find the terminal point?
- P(a, b) is the terminal point indicated by t, and the signs are selected based on the quadrant in which this terminal point is located. For each actual number t that is given.
- The terminal point on the positive x-axis is (1, 0), which denotes that cos(x) = 1, sin(x) = 0 and = 0° or 360°.
- The terminal point (0, 1) on the positive y-axis indicates that = 90° and cos = 0, sin = 1.
- The x-terminal axis's point on the negative side is (-1, 0), which indicates that the angle is 180 degrees, cos is -1, and sin is 0.
- (0, -1), which denotes the terminal point on the negative y-axis, indicates that = 270° and cos = 0, sin = -1.
On a unit circle Ф = 90°
Using the second rule listed above
The terminal point is (0, 1)
sinФ = 1
Terminal point: (0, 1); sinФ = 1
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