Advertisements
Advertisements
Question
Write the lowest rationalising factor of : √5 - √2
Sum
Advertisements
Solution
√5 - √2
( √5 - √2 )( √5 + √2 ) = ( √5 )2 - ( √2 )2 = 3
Therefore lowest rationalizing factor is √5 + √2
shaalaa.com
Rationalisation of Surds
Is there an error in this question or solution?
APPEARS IN
RELATED QUESTIONS
Rationalize the denominator.
`1/sqrt14`
Rationalize the denominator.
`11 / sqrt 3`
Write the simplest form of rationalising factor for the given surd.
`sqrt 27`
Write the lowest rationalising factor of : √13 + 3
Find the values of 'a' and 'b' in each of the following:
`3/[ sqrt3 - sqrt2 ] = asqrt3 - bsqrt2`
If x =`[sqrt5 - 2 ]/[ sqrt5 + 2]` and y = `[ sqrt5 + 2]/[ sqrt5 - 2 ]`; find : xy
If x = 2√3 + 2√2, find: `(x + 1/x)`
If x = 5 - 2√6, find `x^2 + 1/x^2`
If √2 = 1.4 and √3 = 1.7, find the value of : `1/(3 + 2√2)`
Rationalise the denominator `(3sqrt(5))/sqrt(6)`
