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If a ne 0, the multiplicative inverse of...

If `a ne 0`, the multiplicative inverse of `(a)/(b)` is `(b)/(a)`.

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NCERT EXEMPLAR-RATIONAL NUMBERS -Exercise (true(T) or false (F))
  1. (-7)/(2) lies between -3 and -4. True or false.

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  2. (9)/(6) lies between 1 and 2. True or false.

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  3. If a ne 0, the multiplicative inverse of (a)/(b) is (b)/(a).

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  4. The multiplicative inverse of (-3)/(5) is (5)/(3).

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  5. The additive inverse of (1)/(2) is -2. True or false.

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  6. If (x)/(y) is the additive inverse of (c )/(d), then (x)/(y)+(c )/(d)=...

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  7. Write the negation of each of the following statements: For every real...

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  8. If (x)/(y) is the additive inverse of (c )/(d) , then (x)/(y)-(c )/(d...

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  9. The reciprocal of a non-zero rational number (q)/(p) is the rational ...

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  10. If x + y = 0, then -y is known as the negative of x, where x and y are...

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  11. The negative of the negative of any rational number is the number itse...

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  12. The negative of 0 does not exist.

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  13. The negative of 1 is 1 itself.

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  14. For all rational numbers x and y, x - y = y - x.

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  15. For all rational numbers x and y, x xx y = y xx x.

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  16. For every rational number x, x xx 0=x.

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  17. For every rational numbers x, y and z, x+(y xx z)=(x+y) xx (x+z).

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  18. For all rational numbers a, b and c, a (b + c) = ab + bc.

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  19. 1 is the only number which is its own reciprocal.

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  20. -1 is not the reciprocal of any rational number.

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