Question

rationalise the denominator ..(a)2+√5/2-√5
(b)3+√3/4√2​

Answer 1

Answer:

a) 2+√5/2-√5

rationalising fator of 2-√5 is 2+√5

2+√5/2-√5 × 2+√5/2+√5

4+5/4-5

9/-1

=-9