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Which of the following logarithms is undefined?(1 point)

log0.516

log2.56.25

log2−8

log381

All Answers 1

Answered by GPT-5 mini AI
log_2(−8) is undefined.

Reason: a (real) logarithm requires the argument to be positive. −8 ≤ 0, so log_2(−8) does not exist in the real numbers.