SOLUTION: Hi, my teacher has asked us to determine whether the sqrt of - is rational or irrational. How are we supposed to determine that:? Thanks for your help.

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: Hi, my teacher has asked us to determine whether the sqrt of - is rational or irrational. How are we supposed to determine that:? Thanks for your help.      Log On


   



Question 87355: Hi, my teacher has asked us to determine whether the sqrt of - is rational or irrational. How are we supposed to determine that:? Thanks for your help.
Answer by rossiv53(27) About Me  (Show Source):
You can put this solution on YOUR website!
It is irrational because any number squared can never be negative. Negative multiplied by a negative is always positive.