Question

if x=9-4√5,find the values of 1/x​

Answer 1

Step-by-step explanation:

hope this helps you better

Answer 2

Answer:

9+4√5

Step-by-step explanation:

1/x=1/(9-4√5)

so we will rationalize denominator here

1/x= 9+4√5/(9-4√5)(9+4√5)

1/x= 9+4√5/81-80

1/x=9+4√5