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If $x = \frac{3 - 1}{3 + 1} = 2 - 3$ and $y = \frac{3 + 1}{3 - 1} = 2 + 3$ , find the value of $x * y$ .

Class 9Rationalising the DenominatorNumber Systems

A0
B2
C1
D3

Step-by-Step Solution

x * y = (2 - 3) (2 + 3) = 4 - 3 = 1. (A l so x an d y a rerec i p roc a l s, so p ro d u c t i s 1.)

Answer: C) 1

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