Question

rationalise the denominator of √2 /√3+√2-√5 ​

Answer 1

SOLUTION:-

We rationalise the denominator of (3+22) by multiplying its rationalising factor (3−2) in the numerator and denominator as follows: 

    

3+22×3−23−2=(3+2)(3−2)2(3−2)=(3)2−(2)22(3−2)=3−22(