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      Question

      If √c + (1/√c) = 7, then find the value of c +

      (1/c).
      A 45 Correct Answer Incorrect Answer
      B 47 Correct Answer Incorrect Answer
      C 49 Correct Answer Incorrect Answer
      D 51 Correct Answer Incorrect Answer

      Solution

      Given, √c + (1/√c) = 7

      On squaring both sides:
      (√c + (1/√c)) 2 = 72
      Expanding:
      c + 2 + (1/c) = 49
      Simplifying:
      c + (1/c) + 2 = 49
      Subtracting 2 from both sides:
      c + (1/c) = 47

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