Question

Rationalise the denominator. √2/√5+1

Answer 1

Answer:

√10-√2/4.

Step-by-step explanation:

√2/√5+1

√2/√5+1×√5-1/√5-1

using identity : {a+b}{a-b}=a×a-b×b

√2(√5-1)/√5×√5-1×1

√2[√5-1]/5-1

√2[√5-1]/4

√10-√2/4

hence , rationalised the denominator.