Guest Posted April 24, 2008 Report Share Posted April 24, 2008 (edited) If A is a random positive/negative number(an integer,excluding 0),can you find an expression for 2*A,which is correct for both cases. Edited April 24, 2008 by ash013 Quote Link to comment Share on other sites More sharing options...
0 itachi-san Posted April 24, 2008 Report Share Posted April 24, 2008 (2A)^2 Quote Link to comment Share on other sites More sharing options...
0 Guest Posted April 24, 2008 Report Share Posted April 24, 2008 (2A)^2 Expression,which is equal to 2*A and is correct for positive and negative number. Quote Link to comment Share on other sites More sharing options...
0 Guest Posted April 24, 2008 Report Share Posted April 24, 2008 Expression,which is equal to 2*A and is correct for positive and negative number. |2*A| 2*|A| Quote Link to comment Share on other sites More sharing options...
0 Guest Posted April 24, 2008 Report Share Posted April 24, 2008 A+A Quote Link to comment Share on other sites More sharing options...
0 Guest Posted April 24, 2008 Report Share Posted April 24, 2008 |2*A| 2*|A| No,if A is negative,that's not true. Quote Link to comment Share on other sites More sharing options...
0 Guest Posted April 24, 2008 Report Share Posted April 24, 2008 A+A Yes,but we starting from there-2*A or A+A and we searching an expression equal to them. Quote Link to comment Share on other sites More sharing options...
0 Guest Posted May 13, 2008 Report Share Posted May 13, 2008 No,if A is negative,that's not true. um....no If A is negative, the absolute value is positive. If A is positive, the absolute value is positive. For either a positive or negative value of A, the end result would always be the same. Quote Link to comment Share on other sites More sharing options...
0 Guest Posted May 13, 2008 Report Share Posted May 13, 2008 um....no If A is negative, the absolute value is positive. If A is positive, the absolute value is positive. For either a positive or negative value of A, the end result would always be the same. They would be the same, but not equal to 2*A in the case of a negative number, what he wants is: -(-A + -A) Quote Link to comment Share on other sites More sharing options...
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If A is a random positive/negative number(an integer,excluding 0),can you find an expression for 2*A,which is correct for both cases.
Edited by ash013Link to comment
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