SOLUTION: Prove that for n<0<n a. |m/n|=|m|/|n| b. |mn|=|m||n| c. -|m|<=m<=|m|

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Question 1042516: Prove that for n<0 a. |m/n|=|m|/|n|
b. |mn|=|m||n|
c. -|m|<=m<=|m|

Answer by robertb(5830)   (Show Source): You can put this solution on YOUR website!
I will prove only (a). You do the rest....
if x > 0; if x < 0. (And of course, .)
Given: n < 0.
Case I. m > 0.
===> , and so
Case II. m < 0.
===> , and so .
Case III. m = 0 is trivial after substitution of 0 for m to both sides of the equation.
Hope you get the drift...

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