Question

For non-zero rational numbers x, y and z, which one of the following is correct?
(i) (x + y)-1 = x1 + y-1
(ii) (x - y)-1 = x 1 - y-1
(iii)=x-1y-1
(iv) (x x y)-1 = x x y-1​

Answer 1

$163314 - { = 3 {3 { = 3 > 034 = 76}^{?} }^{?} }^{?}$

Answer 2

Answer:

option (iv) is correct .

Step-by-step explanation:

Explanation:

Given , x , y and z are non zero rational numbers

A non zero rational number includes fractions , square roots and $\pi$ that are not 0 and are not square roots of any negative numbers .

So , (x x y)-1 = x x y -1 is the correct answer .

Final answer :

Hence ,Option (iv) is the correct .

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