The fenced‐in area has 4 pigs. What is the minimum number of straight fences needed to divide the 4 pigs such that each pig has
its own pen? Show your solution.
2 answers:
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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
<span /><span />
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
<span /><span />