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4. ํจ์ $( y = f(x) )$๊ฐ ๋ค์๊ณผ ๊ฐ์ด ์ ์๋์ด ์๋ค. \[ f(x) = \begin{cases} -x+2, & x < -1, \\ 2, & x = -1, \\ (3*x+3)/2, & -1 < x < 1, \\ 1, & 1 \leq x < 2, \\ 3, & x = 2, \\ 1, & x \geq 2. \end{cases} \] \[ \lim_{x \to -1-} f(x) + \lim_{x \to 2} f(x) \text{์ ๊ฐ์? [3์ ]} \] \begin{itemize} \item[1] 1 \item[2] 2 \item[3] 3 \item[4] 4 \item[5] 5 \end{itemize} |