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9.log (1/81) to the base 9 is equal to |
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Answer» We know that ____________________1) 1 / aⁿ = a ⁽⁻ⁿ⁾ 2 ) log aⁿ = n log a 3 ) logₐ(a) = 1 ___________________ 1/81 = 1 / 9² = 9⁽⁻²⁾ log ( 1 / 81 ) = log [ 9⁽⁻²⁾] = ( -2 ) log₉(9) = -2 |
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