Question

Rationalise the denominator
4/root5-1

Answer 1

Step-by-step explanation:

4−54+5=(4−5)(4+5)(4+5)(4+5)    . rationalizing numerator and the denominator

=16−5(4+5)2=11(4+5)2

4+54−5=(4+5)(4−5)(4−5)(4−5)    rationalizing numerator and the denominator, 

=16−5(4−5)

Answer 2

Answer:

to rationlige the denominator we should divide