Question

4-√5
4+√5
=a - b√5 find the valueof a and b



plz tell me the ans...​

Answer 1

Answer:

a = 21/11

b = 8/11

Step-by-step explanation:

4+√5/4-√5

= (4+√5)²/4²-(√5)²

= 16+5+8√5/16-5

= 21+8√5/11

= a+b√5

on comparing,

a=21/11

b=8/11