The key idea is that, if a vector field is conservative, then it has curl 0. Equivalently, if the curl is not 0, then the field is not conservative. But if we find that the curl is 0, that on its own doesn't mean the field is conservative.
1.
We want to find 
such that 
. This means
so 
is conservative.
2.
Then
so is conservative.
3.
so is not conservative.
4.
Then
so is conservative.
There are numerous ways you can do this, but take a look at the attachment to see how I did it. I hope it answers your question! :)
The tangent line DC is perpendicular to the radius of the park
The length of AC is 245 feet
<h3>How to determine the distance AC?</h3>
To calculate the distance AC, we start by calculating the length of AB using:
DC^2 = (BC + AB) * BC
So, we have:
105^2 = (45 + AB) * 45
Evaluate the exponent
11025 = (45 + AB) * 45
Divide both sides by 45
245 = 45 + AB
Rewrite as:
AB + 45 = 245
From the figure, we have:
AC = AB + 45
Substitute AB + 45 = 245
AC = 245
Hence, the length of AC is 245 feet
Read more about line of tangents at:
brainly.com/question/6617153
Answer:
21.4476105895
Step-by-step explanation:
Using a calculator 
Answer:
no I think not I have study it at 1 year ago
