Domain question

Answer

Answers can be viewed only if
  1. The questioner was satisfied and accepted the answer, or
  2. The answer was disputed, but the judge evaluated it as 100% correct.
View the answer

1 Attachment

Erdos Erdos
4.6K
  • X96R X96R
    0

    would the domain not just be {R} \ +or- root 7?

  • Erdos Erdos
    0

    Since $7-x^2$ is under the square root, it must be positive, and not equal to zero as it is in the denominator.

The answer is accepted.
Join Matchmaticians Affiliate Marketing Program to earn up to 50% commission on every question your affiliated users ask or answer.