Proving a^0 = 1 for non-zero values of a | Homework Help

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Homework Help Overview

The discussion revolves around proving that a^0 = 1 for non-zero values of a. Participants are exploring the properties of exponents and the definitions involved in this assertion.

Discussion Character

  • Exploratory, Conceptual clarification, Assumption checking

Approaches and Questions Raised

  • The original poster attempts to demonstrate the statement using specific examples but questions the adequacy of this approach. Other participants inquire about the definitions of a^x and whether the laws of exponents are being assumed in the reasoning.

Discussion Status

The discussion is ongoing, with participants providing feedback and prompting further examination of definitions and assumptions. There is no explicit consensus, but guidance has been offered regarding the need for precise definitions and the application of exponent laws.

Contextual Notes

Participants are navigating the challenge of proving a fundamental property of exponents, with some expressing doubt about their initial reasoning and others suggesting a more rigorous approach.

thinkies
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Homework Statement



Prove that a^0 = 1 if a is not equal to 0.

Homework Equations





The Attempt at a Solution


Well,since a is not equal to 0, I replace it with another number.

(1^0)^0 = 1

(6^0)^0 = 1

ETC

Is this enough to prove that a^0 = 1 if a is not equal to 0.Even thought its a basic and easy question...im doubting.

Thx
 
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hhmmm any1?...
 
You haven't 'proved' anything. You just wrote down some numbers. What's your definition of a^x? If it's e^(log(a)*x) the answer is pretty easy, just take the log of both sides. To prove something you need a precise definition of the thing you are trying to prove. What does a^x mean?
 
Are you just assuming the laws of exponents? Like (a^n)*(a^m)=a^(n+m)? If so, then set m=0 and solve for a^m.
 
Dick said:
Are you just assuming the laws of exponents? Like (a^n)*(a^m)=a^(n+m)? If so, then set m=0 and solve for a^m.

Thanks, i though about doing that before, don't know what came up in mind.
 

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