You are here:
Advanced Math/math
Advertisement
Question
This is question from absolute value properties
Question
|a|>= and |a|>=-a
Proof: if a>=0 then |a|=a
If a<0 then |a|=-a>a
A belongs to R then |a|>=a
Please tell me how it could be possible that –a>a.i have a doubt in (If a<0 then |a|=-a>a) please explain
Hi Pratap~
First you need to be careful when you type in the problem because this 'a|>= and |a|>=-a' doesn't make sense. To answer your question how can -a > a. What if a = a negative number like -2 then -a = -(-2) = 2 and 2 is certainly greater than -2.
Math Prof
Related Articles
Advanced Math
Answers by Expert:
Sherry Wallin
Expertise
I can answer most questions up through Calculus and some in Number Theory and Abstract Algebra.
Experience
I have had my Bachelor's Degree since 1987 and have been a teacher since 1988. I earned my Masters Degree in Mathematics May 2010. I have been teaching at the same community college since 2002.
Education/Credentials
I have taught 12 years at the community college level, medical college, and technical college as well as a high school instructor and alternative education instructor and charter school instructor.
Awards and Honors
Master's GPA 3.56
Bachelor's GPA 3.34
Post grad work not degree related GPA 4.0
©2012 About.com, a part of The New York Times Company. All rights reserved.