as we have to rationalise the denominatoras to get rational number then why there it is not done here
Answers
Answer:
Step-by-step explanation:
In these que they had already ask that find the root and we know that root were always mentioned in underrot 3 , underrot 2 etc
If they ask that to do rationalize the denominator than only u have to do others wise ignore it.
Many time in que they don't wrote that find its root than also we find because instead o going in deep process we can mentioned ans in a short process too
But don't worry examiner will provide full marks
Hope it helps you
You should rationalize it actually if you were giving the answer, but most textbooks ignore the step since they are covering some other topic(like quadratic equations in the attachment). The author thinks that it is not necessary and leaves it up to the student to do it themselves.