Question 25

For a non - zero integer a, which of the following is not defined?

(a) $a \div 0$
(b) $0 \div a$
(c) $a \div 1$
(d) $1 \div a$

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Solution

Division of any number by zero is not defined.
So, $a \div 0$ is not defined

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Question 13

In the following question, out of the four options, only one is correct. Write the correct answer:

If y be any non-zero integer, then $y^{0}$ is equal to:
(a) 1
(b) 0
(c) -1
(d) Not defined

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x^{0}

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Question 15

Which of the following is the multiplicative identity for an integer?

(a) a

(b) 1

(d) -1

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