$\"\"$

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The logarithm equation is $\"\"$ .

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Choose correct option.

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F $\"\"$

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G $\"\"$

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H $\"\"$

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J $\"\"$

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Definition of logarithm : $\"\"$ if and only if $\"\"$ .

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$\"\"$ .

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The correct choice is H $\"\"$ .

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$\"\"$

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The correct choice is H.