Difficulty with exponents - fraction exponents ?


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Posted by N/A (202.67.64.156) on October 10, 2003 at 08:06:12:

I don't understand:

X^1/2 Y^1/2 ( 2X^4/3 Y^2 - 4X^2/3 Y^-1/2)

Z^1 1/2 X Z^-2

2^n+1 X 2^n-4 / 2^n-2

I don't understand this type of question as I have no examples of this type to go by.

Thank you


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