Question

rationalize : 9/4+√7​

Answer 1

Answer:

Given,

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+ x1

−2

=>y

2

=9+4

5

+9−4

5

−2

y=+4,−4