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21 October, 06:42

20. Express 2log7 5 as a single logarithm. A. log7 115 B. log7 52 C. log7 511 D. log7 √ 5

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  1. 21 October, 08:25
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    For a logarithm that is expressed in that form, the numerical coefficient should be the exponent of number 5. Such that the simplified logarithm should be,

    log7 (5^2)

    Simplifying the answer would give,

    log7 (25)

    The answer is not among the choices.
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