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Is ∗ defined on the set {1, 2, 3, 4, 5} ...

Is `∗` defined on the set `{1, 2, 3, 4, 5}` by `a * b = L.C.M. of a and b` a binary operation? Justify your answer.

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PSEB-RELATIONS AND FUNCTIONS-Exercise
  1. Let ∗ be the binary operation on N given by * a * b = L.C.M. of a and ...

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  2. Let ∗ be the binary operation on N given by * a * b = L.C.M. of a and ...

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  3. Is ∗ defined on the set {1, 2, 3, 4, 5} by a * b = L.C.M. of a and b ...

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  4. Let ∗ be the binary operation on N defined by a*b=H.C.F. of a and b. ...

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  5. Let ∗ be the binary operation on N defined by a*b=H.C.F. of a and b. ...

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  6. Let ∗ be the binary operation on N defined by a*b=H.C.F. of a and b. ...

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  7. Let ∗ be a binary operation on the set Q of rational numbers as follow...

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  8. Let ∗ be a binary operation on the set Q of rational numbers as follow...

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  9. Let ∗ be a binary operation on the set Q of rational numbers as follow...

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  10. Let ∗ be a binary operation on the set Q of rational numbers as follow...

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  11. Let ∗ be a binary operation on the set Q of rational numbers as follow...

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  12. Let ∗ be a binary operation on the set Q of rational numbers as follow...

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  13. Let ∗ be a binary operation on the set Q of rational numbers as follow...

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  14. Let ∗ be a binary operation on the set Q of rational numbers as follow...

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  15. Let ∗ be a binary operation on the set Q of rational numbers as follow...

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  16. Let ∗ be a binary operation on the set Q of rational numbers as follow...

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  17. Let ∗ be a binary operation on the set Q of rational numbers as follow...

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  18. Let ∗ be a binary operation on the set Q of rational numbers as follow...

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  19. Let A = N xx N and ∗ be the binary operation on A defined by (a, b) *...

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  20. State whether the following statement is true or false. Justify:For an...

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