A right triangle has side lengths 5, 12, and 13 as shown below. Use these lengths to find cos B, tan B, and sin B. cos B 12 13 tan B B sin B =

Algebra and Trigonometry (6th Edition)
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ChapterP: Prerequisites: Fundamental Concepts Of Algebra
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Problem 1MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...
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solve the triangle for sinB, cosB, and tanB

### Trigonometric Relationships in a Right Triangle

In this exercise, we have a right triangle with the following side lengths:
- \( \text{Opposite side to angle B} = 5 \)
- \( \text{Adjacent side to angle B} = 12 \)
- \( \text{Hypotenuse} = 13 \)

The diagram below represents the right triangle:

![Right Triangle](image-link)

\( \Delta ABC \) has:
- \( AC = 12 \)
- \( BC = 5 \)
- \( AB = 13 \)

We will use these lengths to find the cosine (cos), tangent (tan), and sine (sin) of angle \( \mathbf{B} \).

### Trigonometric Functions
1. **Cosine** (\( \cos B \)):
   \[
   \cos B = \frac{\text{Adjacent}}{\text{Hypotenuse}} = \frac{12}{13}
   \]

2. **Tangent** (\( \tan B \)):
   \[
   \tan B = \frac{\text{Opposite}}{\text{Adjacent}} = \frac{5}{12}
   \]

3. **Sine** (\( \sin B \)):
   \[
   \sin B = \frac{\text{Opposite}}{\text{Hypotenuse}} = \frac{5}{13}
   \]

Finally, fill in the provided boxes with the computed values:
- \( \cos B = \frac{12}{13} \)
- \( \tan B = \frac{5}{12} \)
- \( \sin B = \frac{5}{13} \)

These relationships are fundamental in trigonometry, helping to connect angles with side lengths in right triangles.
Transcribed Image Text:### Trigonometric Relationships in a Right Triangle In this exercise, we have a right triangle with the following side lengths: - \( \text{Opposite side to angle B} = 5 \) - \( \text{Adjacent side to angle B} = 12 \) - \( \text{Hypotenuse} = 13 \) The diagram below represents the right triangle: ![Right Triangle](image-link) \( \Delta ABC \) has: - \( AC = 12 \) - \( BC = 5 \) - \( AB = 13 \) We will use these lengths to find the cosine (cos), tangent (tan), and sine (sin) of angle \( \mathbf{B} \). ### Trigonometric Functions 1. **Cosine** (\( \cos B \)): \[ \cos B = \frac{\text{Adjacent}}{\text{Hypotenuse}} = \frac{12}{13} \] 2. **Tangent** (\( \tan B \)): \[ \tan B = \frac{\text{Opposite}}{\text{Adjacent}} = \frac{5}{12} \] 3. **Sine** (\( \sin B \)): \[ \sin B = \frac{\text{Opposite}}{\text{Hypotenuse}} = \frac{5}{13} \] Finally, fill in the provided boxes with the computed values: - \( \cos B = \frac{12}{13} \) - \( \tan B = \frac{5}{12} \) - \( \sin B = \frac{5}{13} \) These relationships are fundamental in trigonometry, helping to connect angles with side lengths in right triangles.
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