Posted by Shreya on Tuesday, January 17, 2012 at 7:01pm.
which of following statements is false
1. The absolute value of a real number is the principal square root of the square of the number.
2. The absolute value of a real number is the distance of the number from zero on a number line.
3. The absolute value of a real number can never be negative.
I thought it be statement 2, and 3 but it also number 1, and i not real understand what that statement means.

mathcalculus  Reiny, Tuesday, January 17, 2012 at 7:03pm
#1 is false , all we need is one counterexample
Assume the statement is true.
 64  = 64
√64 = 8
64≠ 8

mathcalculus  Shreya, Tuesday, January 17, 2012 at 7:06pm
i get it! thanks reiny :D
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