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Thread: Complex nubmer , churchill

  1. #1
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    Question Complex nubmer , churchill

    Hello every body
    unfortunately my language is ot very good
    can every body help me for understanding page 6 exercises 12 and 13 of complex variables and application of churchill that asked , establish the first of formulas (13) , sec 2
    what the meaning of establish in this question ? I found this word name at dictionary but not have any mean in this part ! It mean i should prove formulas like other exercises?

    thanks so much
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  2. #2
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    Re: Complex nubmer , churchill

    Quote Originally Posted by mohammad2232 View Post
    can every body help me for understanding page 6 exercises 12 and 13 of complex variables and application of churchill that asked , establish the first of formulas (13) , sec 2
    what the meaning of establish in this question ?
    It simply means for you to prove the theorem. Show that the statement is true.
    $\LARGE\frac{1}{{zw}} = \frac{{\overline {zw} }}{{{{\left| {zw} \right|}^2}}} = \frac{{\overline z }}{{{{\left| z \right|}^2}}}\frac{{\overline w }}{{{{\left| w \right|}^2}}} = ?$
    Thanks from mohammad2232
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