23-05-2014
Mathematics

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log11 1/121=-x-4 stupid math

Answer :

23-05-2014

[tex]log_{11}\frac{1}{121}=-x-4\\ \\ log_{11}11^{-2}=-x-4\\ \\ 11^{-x-4}=11^{-2}\\ \\ -x-4=-2\\ \\ -x=-2+4\\ \\ -x=2\\ \\ \boxed{x=-2}[/tex]

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kate200468 kate200468

23-05-2014

[tex]log_{11}121=-x-4\\\\log_{11}11^2=-x-4\\\\2=-x-4\\\\x=-4-2\\\\x=-6[/tex]

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