  Math Central - mathcentral.uregina.ca  Quandaries & Queries    Q & Q    Topic: argument   start over

6 items are filed under this topic.    Page1/1            An Euler diagram and a logic argument 2008-09-18 From Regina:Use a Euler diagram to determine whether the following argument is valid or invalid. No wizard can yodel All lizards can yodel No wizard is a lizardAnswered by Penny Nom.     A complex number in polar form 2007-07-23 From roland:write the given complex number z in polar form lzl(p+qi) where lp + qil=1 for 3 - 4i.Answered by Harley Weston.     Exponential form of complex numbers 2007-02-12 From Austin:When dealing with imaginary numbers in engineering, I am having trouble getting things into the exponential form. The equation is -1+i now I do know that re^(theta)i = r*cos(theta) + r*i*sin(theta). Just not quite understanding the order of operations. ThanksAnswered by Penny Nom.     | n + 4 | + | 3 - 2n | = 16 2002-05-24 From Randall:I don't seem to be able to solve this: | n + 4 | + | 3 - 2n | = 16 Answered by Penny Nom.     An Invalid Argument 1999-05-31 From Rod Redding:Can an invalid argument have a true conclusion? If yes then why?Answered by Walter Whiteley.     A 1999-05-02 From Leah:a=b a^2=aba^2+b^2=ab-b^2 (a-b)(a+b)=b(a-b) a+b=b b 2=1 why is this proof wrong?Answered by Penny Nom.      Page1/1    Math Central is supported by the University of Regina and The Pacific Institute for the Mathematical Sciences.    about math central :: site map :: links :: notre site français