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logarithmic function

label Algebra
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Find the domain of the logarithmic function

f(x)=log base4(x to the second power minus 81

Apr 7th, 2015

The function is defined if x^2 - 81 > 0 or (x - 9)(x+ 9) > 0.

Its domain consists of two intervals - infty < x < -9 and 9 < x < + infty.

Apr 7th, 2015

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Apr 7th, 2015
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Apr 7th, 2015
Sep 22nd, 2017
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