Math Problem Statement
Find the exact value of tangent, start fraction, pi, divided by, 3, end fractiontan 3 π , expressing your answer with a rational denominator.
Solution
To find the exact value of , we proceed as follows:
Step 1: Recall the tangent value for
The angle is one of the standard angles on the unit circle. From trigonometric tables or the properties of the 30-60-90 triangle:
Step 2: Express the result with a rational denominator
Since the result is not in rational form, we express it with a rational denominator:
- To write as a fraction, we multiply by (rationalizing the denominator):
Thus:
Final Answer:
The exact value of is:
Additional Explanation:
If you want to see this value derived from the sine and cosine of :
- The sine and cosine values for are:
- The tangent is the ratio of sine to cosine:
Simplify:
Do you want a deeper explanation of this derivation? Let me know!
Related Questions:
- What is the exact value of ?
- Find and express it with a rational denominator.
- Derive the values of sine and cosine for from the unit circle.
- Prove that for any angle .
- Determine using symmetry properties of the unit circle.
Tip:
When working with trigonometric functions, always reference the unit circle and standard triangles (30-60-90 and 45-45-90) for exact values.
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Math Problem Analysis
Mathematical Concepts
Trigonometry
Tangent Function
Unit Circle
Rationalizing Denominators
Formulas
tan(θ) = sin(θ) / cos(θ)
tan(π/3) = √3
Theorems
Tangent function properties
Rationalizing denominators
Suitable Grade Level
Grades 9-12