syed4all Posts: 7, Reputation: 1 New Member #1 Jun 21, 2017, 11:54 AM
Question about Proof of Real Number..
Q: For real numbers a,b show the following by stating the properties used:

I) (-a)b = a(-b) = -ab

ii) (-a)(-b) = ab
 smoothy Posts: 25,495, Reputation: 2853 Uber Member #2 Jun 21, 2017, 01:15 PM
This is YOUR homework... show us what YOU think the answer is and why. Site rules require it.
 Rebecca131 Posts: 3, Reputation: 1 New Member #3 Jun 21, 2017, 01:39 PM
These are pretty tricky.

I) (-a)b = a(-b) = -ab

Attachment 48806

ii) (-a)(-b) = ab

Attachment 48807

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