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AMO · 2027 · Grades 6-7 · Self-study SET 23 Question 1

AMO

Question 1

Find the possible value(s) of $\sqrt{\sqrt{0.0081}+\sqrt{0.0001}+\sqrt{0.81}}$.

**Input:** Choose one option.
  1. $1$
  2. $-1$
  3. Both 1 and −1
  4. Decimal numbers do not have square roots
  5. $\sqrt{0.019}$