SOLUTION: When is c/f=f/c true A) only if c=f B) only if |c|=|f|

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Question 658992: When is c/f=f/c true
A) only if c=f
B) only if |c|=|f|
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
c/f=f/c

c*c = f*f

c^2 = f^2

sqrt(c^2) = sqrt(f^2)

|c| = |f|

So the answer is choice B