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MakcuM [25]
3 years ago
8

Which is an asymptote of the graph of the function y = cot ( x - 2pi / 3 )

Mathematics
2 answers:
Stolb23 [73]3 years ago
7 0

Answer:

B. x = -pi/3

Step-by-step explanation:

this is the correct answer on ed-genuity, hope this helps you! :)

vesna_86 [32]3 years ago
3 0
\bf y=cot\left(x-\frac{2\pi }{3}  \right)\implies y=\cfrac{cos\left(x-\frac{2\pi }{3}  \right)}{sin\left(x-\frac{2\pi }{3}  \right)}

now, if the denominator turns to 0, the fraction becomes undefined, and you get a "vertical asymptote" when that happens, so let's check when is that

\bf sin\left(x-\frac{2\pi }{3}  \right)=0\implies sin^{-1}\left[ sin\left(x-\frac{2\pi }{3}  \right) \right]=sin^{-1}(0)
\\\\\\
x-\frac{2\pi }{3}=
\begin{cases}
0\\
\pi 
\end{cases}\implies \measuredangle x=
\begin{cases}
\frac{2\pi }{3}\\
\frac{5\pi }{3}
\end{cases}

now, at those angles, the function is asymptotic, check the picture below

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