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Quote from: myriam on 17/05/2010 20:53:57ok, where is the theorem telling that i can't write 1= -[(-1)²]½ ??No theoerm required. You are substituting something that is not equal to -1. Show me how you get from my line 2 to your line 2.

ok, where is the theorem telling that i can't write 1= -[(-1)²]½ ??

hello (x)E(a*b)= ((x)E(a))E(b) if and only if x>0[]

I looked at a post JP asked what E was and I did not see a response.And I see JP has allot on the ball from other prior posts