Math Problem Statement

draw the angle in standard position: - 3pi/4

Solution

To draw the angle 3π4-\frac{3\pi}{4} in standard position:

  1. Standard position: The initial side of the angle lies along the positive xx-axis, and the terminal side is determined by rotating counterclockwise (for positive angles) or clockwise (for negative angles).

  2. 3π4-\frac{3\pi}{4} radians: This angle is negative, so we rotate clockwise from the positive xx-axis. In radians, π\pi represents a half-circle (180°).

    • 3π4-\frac{3\pi}{4} is 135-135^\circ, or three-quarters of the way to π-\pi (which is 180-180^\circ).
  3. Position of the angle: Start from the positive xx-axis and rotate clockwise by 135°. The terminal side of the angle will lie in Quadrant III, as you have passed 90° (which lands in Quadrant IV) but stopped before reaching 180° (which lands on the negative xx-axis).

The terminal side should end between the negative xx-axis and the negative yy-axis.

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Math Problem Analysis

Mathematical Concepts

Trigonometry
Angles in Standard Position
Radians

Formulas

Angle in radians = (π * degrees) / 180
Standard position angle rotation

Theorems

Quadrant System

Suitable Grade Level

Grades 10-12