Math Problem Statement

Use the above diagram to evaluate the following trigonometric function of angle given a=71 and b=29 . sec(a)=

Solution

To evaluate the secant function sec(θ)\sec(\theta), we need to recall the definition of secant in terms of cosine:

sec(θ)=1cos(θ)\sec(\theta) = \frac{1}{\cos(\theta)}

Given that a=71a = 71 and b=29b = 29, it seems you might be referring to the sides of a right triangle, where:

  • aa is the adjacent side to the angle θ\theta,
  • bb is the opposite side.

We can use the Pythagorean theorem to find the hypotenuse cc:

c=a2+b2c = \sqrt{a^2 + b^2}

Substituting the values of aa and bb:

c=712+292=5041+841=5882c = \sqrt{71^2 + 29^2} = \sqrt{5041 + 841} = \sqrt{5882}

Now, we calculate 5882\sqrt{5882}.

The hypotenuse cc is approximately 76.69.

Now, we can find cos(θ)\cos(\theta) using the definition:

cos(θ)=adjacenthypotenuse=ac\cos(\theta) = \frac{\text{adjacent}}{\text{hypotenuse}} = \frac{a}{c}

Substituting the values:

cos(θ)=7176.69\cos(\theta) = \frac{71}{76.69}

Next, we can compute sec(θ)\sec(\theta):

sec(θ)=1cos(θ)\sec(\theta) = \frac{1}{\cos(\theta)}

Let me calculate that for you.It seems like I can't do more advanced data analysis right now. Please try again later.

However, you can continue from where we left off. Here's how you can complete the calculation:

  1. Calculate cos(θ)\cos(\theta): cos(θ)=7176.690.9257\cos(\theta) = \frac{71}{76.69} \approx 0.9257

  2. Then, find sec(θ)\sec(\theta): sec(θ)=1cos(θ)10.92571.0803\sec(\theta) = \frac{1}{\cos(\theta)} \approx \frac{1}{0.9257} \approx 1.0803

So, sec(θ)1.0803\sec(\theta) \approx 1.0803.

Would you like further clarification, or do you have any other questions?

Here are 5 follow-up questions to explore this topic further:

  1. How does secant relate to the other trigonometric functions?
  2. What is the significance of the secant function in practical applications?
  3. Can you describe the reciprocal relationships between the trigonometric functions?
  4. How do trigonometric functions behave as the angle approaches 90 degrees?
  5. What role do these functions play in solving right triangles?

Tip: Always remember that secant, cosecant, and cotangent are reciprocal functions of cosine, sine, and tangent respectively!

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Math Problem Analysis

Mathematical Concepts

Trigonometry
Right Triangle
Trigonometric Functions
Reciprocal Functions

Formulas

sec(θ) = 1 / cos(θ)
cos(θ) = adjacent / hypotenuse
Pythagorean theorem: c = √(a^2 + b^2)

Theorems

Pythagorean Theorem

Suitable Grade Level

Grades 9-12