If xy 0, which of the following is equivalent to (x/y)^3*(2y/x)^4 ?

Question

If  xy 
eq 0 , which of the following is equivalent to  (\frac{x}{y})^3(\frac{2y}{x})^4?

A.  2xy

B.  8xy^2

C.  16x^2y^3

D.  \frac{2y}{x}

E.  \frac{16y}{x}

Kinshook · Answer

Asked: If  xy 
eq 0 , which of the following is equivalent to  (\frac{x}{y})^3(\frac{2y}{x})^4?

(\frac{x}{y})^3(\frac{2y}{x})^4 = 2^4x^{3-4}*y^{-3+4} = \frac{16y}{x}

IMO E

MBAHOUSE · Answer

Simple question about powers. No problem on this one.

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