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help- equation

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help- equation

by hpgmat » Sat Oct 24, 2009 1:00 pm
for all Positive integers m, [m] = 3m when m is odd and [m]= 1/2 m when m is even. which of the following is equivalent to [9] x [6] ?

[81]
[54]
[36]
[27]
[18]

please explain
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by NikolayZ » Sat Oct 24, 2009 1:13 pm
Hey there !

[9]=9*3, because 9 is odd.
[6]=6*1/2=3, because 6 is even.
Hence [9]*[6]=81
[27]=27*3=81.
Hence [9]*[6]=[27]
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