Welcome to Westonci.ca, where you can find answers to all your questions from a community of experienced professionals. Get expert answers to your questions quickly and accurately from our dedicated community of professionals. Join our platform to connect with experts ready to provide precise answers to your questions in different areas.

If [tex][tex]$\cot (\beta)=\frac{\sqrt{3}}{7}$[/tex][/tex], what is [tex][tex]$\sec (\beta)$[/tex][/tex]?

Sagot :

Given [tex]\(\cot(\beta) = \frac{\sqrt{3}}{7}\)[/tex], we want to find [tex]\(\sec(\beta)\)[/tex].

### Step-by-Step Solution:

1. Find [tex]\(\tan(\beta)\)[/tex]:

Given the cotangent of [tex]\(\beta\)[/tex],
[tex]\[ \cot(\beta) = \frac{\sqrt{3}}{7} \][/tex]
we know the relationship between cotangent and tangent:
[tex]\[ \tan(\beta) = \frac{1}{\cot(\beta)} \][/tex]

Substituting the given value,
[tex]\[ \tan(\beta) = \frac{1}{\frac{\sqrt{3}}{7}} = \frac{7}{\sqrt{3}} \][/tex]

2. Simplify [tex]\(\tan(\beta)\)[/tex]:
[tex]\[ \tan(\beta) = \frac{7\sqrt{3}}{3} \approx 4.04145 \][/tex]

3. Find [tex]\(\cos(\beta)\)[/tex]:

We use the identity involving tangent and secant:
[tex]\[ \sec^2(\beta) = 1 + \tan^2(\beta) \][/tex]

First, compute [tex]\(\tan^2(\beta)\)[/tex]:
[tex]\[ \tan^2(\beta) = \left( \frac{7\sqrt{3}}{3} \right)^2 = \frac{49 \cdot 3}{9} = \frac{147}{9} = 16.3333 \][/tex]

Then, use this value to find [tex]\(\sec^2(\beta)\)[/tex]:
[tex]\[ \sec^2(\beta) = 1 + \tan^2(\beta) = 1 + 16.3333 = 17.3333 \][/tex]

4. Find [tex]\(\sec(\beta)\)[/tex]:
Take the square root of both sides to find [tex]\(\sec(\beta)\)[/tex]:
[tex]\[ \sec(\beta) = \sqrt{17.3333} \approx 4.1633 \][/tex]

Therefore, [tex]\(\sec(\beta) \approx 4.1633 \)[/tex].

This is an approximate value, rounding to four significant figures if necessary.