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CDS 2022 · PYQ · Algebra · medium

If x = 7 + 4√3, then what is the value of √x + 1/√x?

  1. A.2
  2. B.4✓ Correct
  3. C.1
  4. D.3

Explanation

x = (2+√3)², so √x = 2+√3 and 1/√x = 2-√3. Their sum is 4.
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