nick3455 nick3455

12-05-2018
Mathematics

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Estimate log4(21)by choosing the interval in which the answer would space lie. [1,2] [2,3] [3,4] [5,6]

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tpoore0125 tpoore0125

12-05-2018

If
[tex] log_{a}(b) = c \\ {a}^{c} = b[/tex]
using this, you know that

[tex] {4}^{2} = 16 \\ {4}^{3} = 64 \\ 16 < 21 < 64[/tex]
so you know the interval is [2,3]

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