Math Problem Statement

Визнач координати точки числового кола P(-3π/2)

Solution

The problem asks to find the coordinates of the point on the unit circle corresponding to the angle P(3π2)P\left( -\frac{3\pi}{2} \right).

Step-by-Step Solution:

  1. Interpret the angle:
    The angle 3π2-\frac{3\pi}{2} is a negative angle, so it is measured in the clockwise direction.

    To find the equivalent positive angle, we can add 2π2\pi to 3π2-\frac{3\pi}{2}: 3π2+2π=π2-\frac{3\pi}{2} + 2\pi = \frac{\pi}{2} This means 3π2-\frac{3\pi}{2} is coterminal with π2\frac{\pi}{2}, which corresponds to the positive y-axis on the unit circle.

  2. Determine the coordinates:
    The angle π2\frac{\pi}{2} points directly upwards on the unit circle. The coordinates of this point on the unit circle are: (x,y)=(0,1)(x, y) = (0, 1)

Therefore, the coordinates of the point corresponding to P(3π2)P\left( -\frac{3\pi}{2} \right) are (0,1)\boxed{(0, 1)}.

Would you like more details on how unit circle coordinates are derived or have any further questions?

Related Questions:

  1. What are the coordinates of the point at P(π2)P\left( \frac{\pi}{2} \right)?
  2. What is the significance of coterminal angles on the unit circle?
  3. How do you find the coordinates of P(3π2)P\left( \frac{3\pi}{2} \right)?
  4. How do negative and positive angles relate on the unit circle?
  5. What are the sine and cosine values of π2\frac{\pi}{2}?

Tip: Remember that coterminal angles have the same terminal point on the unit circle, meaning their coordinates are identical!

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Math Problem Analysis

Mathematical Concepts

Trigonometry
Unit Circle
Coterminal Angles

Formulas

Coterminal angle formula θ + 2π
Coordinates of points on the unit circle

Theorems

Unit Circle Theorem

Suitable Grade Level

Grades 9-12