Math Problem Statement
Find the reference angle for (29pi/3)
Solution
To find the reference angle for the angle , we first need to bring the angle within the standard range of to .
Step 1: Reduce the angle to within one full rotation
Since represents a full rotation, we want to subtract multiples of from until it falls within the range .
Start by dividing by to see how many full rotations fit: This gives approximately . This means that has completed 4 full rotations, and we have a remainder of of a full rotation.
Step 2: Subtract full rotations
Now, subtract the integer part of the division (which is 4 full rotations, or ) from : So, the reduced angle is , which is between and .
Step 3: Find the reference angle
The reference angle is the smallest positive angle between the terminal side of the given angle and the x-axis. To find it for an angle in the fourth quadrant (like ), we subtract it from :
Thus, the reference angle for is .
Would you like further details or have any questions?
Here are some related questions for you to explore:
- How do you find the reference angle for an angle in the second quadrant?
- How can you convert an angle in radians to degrees?
- What is the relationship between an angle and its coterminal angles?
- How do you find the reference angle for ?
- How do periodic functions (like sine and cosine) behave for angles greater than ?
Tip: When working with angles larger than , always reduce the angle to a value between and first to make finding the reference angle easier.
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Math Problem Analysis
Mathematical Concepts
Trigonometry
Reference Angles
Radians
Angle Reduction
Formulas
Reference angle = 2π - θ (for angles in the fourth quadrant)
Reducing angles to the range 0 ≤ θ < 2π
Theorems
Reference angle theorem
Coterminal angle theorem
Suitable Grade Level
Grades 9-11