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    Prove that (1/logx(xy^2))+(1/logy(xy^2))+(1/log2(xy^z))=1
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    (Original post by cathedra x)
    Prove that (1/logx(xy^2))+(1/logy(xy^2))+(1/log2(xy^z))=1
    Have you typed that correctly, should there be a z, can you use more brackets with the logs as well it isn't as clear as it could be.
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    Sorry I couldn't type it clearly enough. I'm struggling to type it as it should be. It's supposed to be the expression 1 "divided by log of (xy^2)-not (xy)^2- to the base x" plus the expression "1 divided by log of (xy^2)" plus the expression "1 divided by log of (xy^z) to the base 2". Prove that this is equal to 1. And yes, there is a z. By the way, thanks for your reply and for your patience.
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    (Original post by cathedra x)
    Sorry I couldn't type it clearly enough. I'm struggling to type it as it should be. It's supposed to be the expression 1 "divided by log of (xy^2)-not (xy)^2- to the base x" plus the expression "1 divided by log of (xy^2)" plus the expression "1 divided by log of (xy^z) to the base 2". Prove that this is equal to 1. And yes, there is a z. By the way, thanks for your reply and for your patience.
    So is this what you mean?
     \displaystyle \frac{1}{\log_x (xy^2)} +\frac{1}{\log_y (xy^2)}+\frac{1}{\log_2 (xy^z)}=1 ?
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    (Original post by cathedra x)
    Sorry I couldn't type it clearly enough. I'm struggling to type it as it should be. It's supposed to be the expression 1 "divided by log of (xy^2)-not (xy)^2- to the base x" plus the expression "1 divided by log of (xy^2)" plus the expression "1 divided by log of (xy^z) to the base 2". Prove that this is equal to 1. And yes, there is a z. By the way, thanks for your reply and for your patience.
    Any chance of a picture? Might make it a bit clearer, I'm still struggling to understand the question
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    Yes, thank you. That's the equation
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    (Original post by an_atheist)
    Any chance of a picture? Might make it a bit clearer, I'm still struggling to understand the question
    Sorry, the question doesn't come with a picture or diagram.
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    (Original post by B_9710)
    So is this what you mean?
     \displaystyle \frac{1}{\log_x (xy^2)} +\frac{1}{\log_y (xy^2)}+\frac{1}{\log_2 (xy^z)}=1 ?
    Pretty sure this isn't an identity; either there's a mistake or details about the values of x,y,z are missing.
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    (Original post by IrrationalRoot)
    Pretty sure this isn't an identity; either there's a mistake or details about the values of x,y,z are missing.
    Same thoughts here.
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    OK, thanks. I'll check the question again and get back to all of you.
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    i think that the third base should be z not 2
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    (Original post by the bear)
    i think that the third base should be z not 2
    The problem works if you replace the 2 with a y and the z with a 2.
 
 
 
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