SOLUTION: How can I prove this? 4. If a=-a then a=0 1.(a raise to negative 1) raise to -1=a 2. (a/b) raise to -1= b/a 3.abc=0 -> a=0 b=0 or c=0 Thank you so much for helping

Algebra ->  Real-numbers -> SOLUTION: How can I prove this? 4. If a=-a then a=0 1.(a raise to negative 1) raise to -1=a 2. (a/b) raise to -1= b/a 3.abc=0 -> a=0 b=0 or c=0 Thank you so much for helping       Log On


   



Question 627836: How can I prove this?
4. If a=-a then a=0
1.(a raise to negative 1) raise to -1=a
2. (a/b) raise to -1= b/a
3.abc=0 -> a=0 b=0 or c=0
Thank you so much for helping :)

Answer by solver91311(24713) About Me  (Show Source):
You can put this solution on YOUR website!


Assume



Add to both sides:



Multiply by



Which contradicts the original assumption. Therefore, reductio ad absurdum,



John

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