elaine234
elaine234
24-03-2016
Mathematics
contestada
what is 81 to the power of -1/4?
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physchemcalc
physchemcalc
24-03-2016
81^(-1/4) is the same as the fourth root of (1/81). Which can be written as 4th root of 1 divided by the 4th root of 81.
The 4th root of 1 is 1 (because 1x1x1x1x1=1).
The 4th root of 81 is 3 (because 3x3x3x3=81).
So 81^(-1/4) = 1/3
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