Rationalizing Factor is    is 
  • a)
    -5-√2
  • b)
    5-√2
  • c)
    5+√2
  • d)
    -5+√2
Correct answer is 'C'. Can you explain this answer?
Related Test: Test: Real Numbers

Class 9 Question

By Vivek Nirvan · Jun 24, 2018 ·Class 9
6 Answers
Himaja Ammu answered Jun 16, 2018
Yaa rationalising factor of 5-root 2 is 5+ root2

Nandika H Hareendran answered Jun 24, 2018
I am confused because the answer which got is 5+root 2/23. I got this answer by taking the congugate.

Arun Rajput answered May 01, 2019
Can you explain the answer

Sudhir Shelke answered Jun 16, 2018
Ans c is because by direct rationalisation but while solving it comes =5+root2 ÷5×5-root2×root2 =5+root2÷25-2 =5+root 2÷23 {answer} so i m too confused

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