All rational numbers have a multiplicative inverse except ____

0

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1

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- 1

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none of these

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Solution

The correct option is A $0$
Rational number have a multiplicative inverse for every number except $0$ . This is because, the inverse of $0$ is not defined in the number system. Thus $0$ does not have a multiplicative inverse.

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Similar questions

Question 10
Multiplicative inverse of a negative rational number is:
(a) a positive rational number.
(b) a negative rational number.
(c) 0
(d) 1

The sum of a rational number $- \frac{1}{2}$ and its multiplicative inverse is

a) $0$

b) $1$

c) $- 2 \frac{1}{2}$

d) $- 2$

(i)

a (b + c) = a b + a c

a, b

c

(i i)

1

(i i i)

\frac{a}{b}

\frac{c}{d}

\frac{a}{b}

\times

\frac{c}{d}

= 1

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