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anonymous

  • one year ago

I'm trying to solve an equation where I need to convert from exponential to logarithms in simultaneous equations. 7.5 = a * b^log2(128) 2.5 = a * b^log2(512) I calculated the log2 in both equation to get this: 7.5 = a * b^7 2.5 = a * b^9 But need to convert to logarithms on both sides to solve for b Can anyone help please? Thanks in advance

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  1. lucaz
    • one year ago
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    do you have the answer?

  2. lucaz
    • one year ago
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    I just divide eq.1 / eq.2 and got 3=b^-2 then b=1/9, but I'm not sure if that's ok

  3. lucaz
    • one year ago
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    sorry, b= +/- 1/sqrt(3)

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