Answer:
Area = length x width
width = 1/2 length = 12/2 = 6 = width
area = 6x 12 = 72
Hope that answers your question
don't hesitate to comment if you are confused about something
Step-by-step explanation:
For the given equation ⇒⇒⇒

and the given range 0 ≤ x ≤ π
We should note that the zeros of the denominator will be at
cos x = 0
∴

So, the given equation is undefined at π/2
So, <span>the students error is the division by zero.
</span>
See the attached figure which represents the graph of the given equation and we can see it is undefined at π/2
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A vertical asymptote simply means that the function is undefined at a certain point. We are given that it occurs at x=25. Notice that x is in the denominator and if the denominator equals 0, the entire function is undefined. <em>a</em> and <em>k</em> are simply constants, and so they can take on any value. This is one of infinite solutions to this question:

Notice that when you plug in x=25, the denominator is 0 and the function is undefined making it a vertical asymptote.
Hope I could help!
I know pi its 3.141595657589793239626448832....
And so on for at least 1000 more numbers