Real numbers   »      

  1. Determine the domain of the square root expression.

  2. Pay special attention to the multiplication of an inequality by a negative number and the sign rule.

  3. Use the numeric keypad and the character keypad for easier input.

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Real numbers -
Find the domain

-level 1-

Find the domain D. x∈ℝ
  D: {x|x }  

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