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why.math

  • 4 years ago

The domain of the following relation: R: {(3, −2), (1, 2), (−1, −4), (−1, 2)} is {−1, 1, 3} {−1, −1, 1, 3} {−4, −2, 2, 2} {−4, −2, 2}

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  1. amistre64
    • 4 years ago
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    no duplicates needed so 2 and 3 are out

  2. amistre64
    • 4 years ago
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    -4 aint a first number so 4 is out

  3. amistre64
    • 4 years ago
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    1 and 2 are actually equal and equivalent; but for "proper" notation its 1

  4. why.math
    • 4 years ago
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    thank you for explaining

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