Math Problem Statement

Find sec theta, sin theta, and tan theta, where theta is the angle shown in the figure. Give exact values, not decimal approximations.

Find sec theta, sin theta, and tan theta, where theta is the angle shown in the figure. Give exact values, not decimal approximations.

Solution

To solve for sec(θ)\sec(\theta), sin(θ)\sin(\theta), and tan(θ)\tan(\theta) based on the given right triangle:

Step 1: Find the hypotenuse

We can use the Pythagorean theorem to find the hypotenuse cc of the right triangle.

c=52+62=25+36=61c = \sqrt{5^2 + 6^2} = \sqrt{25 + 36} = \sqrt{61}

So, the hypotenuse is 61\sqrt{61}.

Step 2: Calculate the trigonometric values

  1. sin(θ)\sin(\theta): sin(θ)=oppositehypotenuse=661\sin(\theta) = \frac{\text{opposite}}{\text{hypotenuse}} = \frac{6}{\sqrt{61}}

  2. tan(θ)\tan(\theta): tan(θ)=oppositeadjacent=65\tan(\theta) = \frac{\text{opposite}}{\text{adjacent}} = \frac{6}{5}

  3. sec(θ)\sec(\theta): sec(θ)=hypotenuseadjacent=615\sec(\theta) = \frac{\text{hypotenuse}}{\text{adjacent}} = \frac{\sqrt{61}}{5}

Final Answers:

  • sin(θ)=661\sin(\theta) = \frac{6}{\sqrt{61}}
  • tan(θ)=65\tan(\theta) = \frac{6}{5}
  • sec(θ)=615\sec(\theta) = \frac{\sqrt{61}}{5}

Let me know if you'd like more details or explanations!

Here are some related questions you might find useful:

  1. How do you rationalize the denominator of 661\frac{6}{\sqrt{61}}?
  2. What is cos(θ)\cos(\theta) for this triangle?
  3. How would you calculate cot(θ)\cot(\theta) based on tan(θ)\tan(\theta)?
  4. How does the Pythagorean theorem work in general for right triangles?
  5. What is the relationship between sec(θ)\sec(\theta) and cos(θ)\cos(\theta)?

Tip: Always remember that the reciprocal identities like sec(θ)=1cos(θ)\sec(\theta) = \frac{1}{\cos(\theta)} can be used to simplify trigonometric calculations!

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Math Problem Analysis

Mathematical Concepts

Trigonometry
Right Triangles

Formulas

Pythagorean theorem: c^2 = a^2 + b^2
Sine: sin(θ) = opposite / hypotenuse
Tangent: tan(θ) = opposite / adjacent
Secant: sec(θ) = hypotenuse / adjacent

Theorems

Pythagorean Theorem
Trigonometric Ratios

Suitable Grade Level

Grades 9-12