Instructions

In the following questions numbered 1 to 20, a question is followed by data in the form of two statements labelled as I and II You have to decide whether the data given in the statement is sufficient to answer the questions.

Question 5

If $$x, y, z \epsilon โ„$$ and $$z \neq 0$$.What is the value of $$\frac{xy}{z^{2}}$$
I. $$x = y$$
II. $$x^{2} + y^{2} = 0$$


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