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In the definition of log_b(x), what condition must base b satisfy?

Ab > 1 and b != 0
Bb > 0 and b != 1
Cb >= 0 and b != 1
Db > 0 and b == 1
Answer & Solution
Correct answer: B. b > 0 and b != 1
Logarithmic bases are strictly restricted to positive numbers different from 1.
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