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Introduction to Logarithms

6. Exponential and Logarithmic Functions / Introduction to Logarithms / 문제 2

문제 2

Find the domain of the following function: f(x) = log[(x - 3)/(x + 7)]

A

(-7, 3)

B

(-3, 7)

C

(-∞, -7) ∪ (3, ∞)

D

(-∞, -3) ∪ (7, ∞)