Question

plz ans it's urgent rationalise 1÷root 7+root 6-root 13..plz guys

Answer 1

DEAR FRIEND ,
UR QUESTION WAS 1/ROOT 7+ROOT 6-ROOT 13
THE ANSWER IS:

1*ROOT 7/ROOT 7*ROOT 7+ROOT 6-ROOT 13

HERE ,AS WE KNOW THAT WHEN ROOTS ARE MULTIPLIED THEY GET CANCELED AND ALSO WE CAN ADD DIFFERENT ROOTS,

ROOT 7/7+ROOT 6-ROOT 13 IS THE ANSWER .

HOPE THIS WAS HELPFUL MY FRIEND :)

Answer 2

Rationalising the denominator : If the denominator of the expression contains a term with a square root or a number under the radical sign then the process of converting it to an equivalent expression whose denominator is a rational number , is called rationalising the denominator.
•Conjugate of (√a + b) is (√a-b) & Conjugate of (√a - √ b) is (√a + √b).
For Rationalising the denominator , we will multiply the numerator and denominator by conjugate of denominator to remove the radical sign form the denominator.HOPE THIS WILL HELP YOU...