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प्रश्न
Which of the following is not true?
विकल्प
Rational numbers are closed under addition.
Rational numbers are closed under subtraction.
Rational numbers are closed under multiplication.
Rational numbers are closed under division.
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उत्तर
Rational numbers are closed under division.
Explanation:
Rational numbers are not closed under division.
As, 1 and 0 are the rational numbers but `1/0` is not defined.
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संबंधित प्रश्न
Simplify:
Multiply:
Multiply:
Zero has ______ reciprocal.
Divide:
Mark the following pairs of rational numbers on the separate number lines: `5/6` and `(- 2)/3`
Insert five rational number between:
`-(3)/(4) and -(2)/(5)`
Arrange the following rational numbers in descending order.
`(4)/(3), (-14)/(5) and (17)/(15)`
Write a rational number in which the numerator is less than ‘–7 × 11’ and the denominator is greater than ‘12 + 4’.
Write the rational number whose numerator and denominator are respectively as under:
25 + 15 and 81 ÷ 40
