Question

If x = (9+4√5) then (√x - 1/√x) = ___________
Can anyone help me with this sum..
Please solve it Step by Step..
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Answer 1

Answer:

x=9+4

5

=>

x

1

=

9+4

5

1

×

9−4

5

9−4

5

=>

x

1

=9−4

5

Let y=

x

−

x

1

Squaring both sides,

y

2

=x+

x

1

−2

=>y

2

=9+4

5

+9−4

5

−2

y=+4,−4