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littlemiss

  • 3 years ago

4^x=12

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  1. anonymous
    • 3 years ago
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    \[b^x=A\iff x=\frac{\ln(A)}{\ln(b)}\]

  2. anonymous
    • 3 years ago
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    this is sometimes called the "change of base" formula in your case \(A=12,b=4\)

  3. Dandave09
    • 3 years ago
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    Log both sides so u get log 4^x =log 12. therefore by law of logs x log 4 = log 12. so x=log 12/log 4...

  4. littlemiss
    • 3 years ago
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    thank you so much

  5. knowelectronics
    • 3 years ago
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    \[\log 4^{x} = \log 12\] \[x \log 4 = \log 12 \] \[x = \log 12\div \log 4 \]

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