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January 18th, 2012, 06:59 AM   #1
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Listing members of this set help

Let

A = (-1, -2, 1, 2, 3, 5)

List the members of the following sets:

i) (x ? R: x = m/n for m, n ? A)

ii) (x ? Z: x = m/n for m, n ? A)

Could anybody help in explaining this please? R and Z are real and integers, but I'm not certain of what exactly to do.

Thanks
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January 22nd, 2012, 03:54 AM   #2
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Re: Listing members of this set help

Quote:
Originally Posted by Flook
Let

A = (-1, -2, 1, 2, 3, 5)

List the members of the following sets:

i) (x ? R: x = m/n for m, n ? A)

ii) (x ? Z: x = m/n for m, n ? A)

Could anybody help in explaining this please? R and Z are real and integers, but I'm not certain of what exactly to do.

Thanks
Take :

-2 and consider all the ratios w.r.t the other Nos i.e :

-2/-2 , -2/-1 ,-2/1, -2/2 ,-2/3, -2/5

Repeat the same process with the rest of the Nos .Of the result subtract equal Nos

For question (ii), of the above set consider the Nos that are integers
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