MathematicsRationalise the denominator of the following- If is , then is

Rationalise the denominator of the following- If is , then is


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

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    Solution:

    Concept- Rationalisation is the process which is used to eradicate the radical part (under root or imaginary part) from the denominator. In this we simply multiply and divide the given fraction with the radical part which we have to eliminate.
    Given that,
    Rationalisation of is Comparing both the sides,
    Now, squaring both the sides
    We get Hence, the correct answer is option (1) .
     
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