Question

find the square root of
$11 + 2 \sqrt{30}$
​

Answer 1

Answer:

To find :

11+2

30

We can rewrite 11+2

30

as 5+2

30

+6=

5

25+10

30

+(

30

)

2

⟹

11+2

30

=

5

(

30

+5)

2

=

5

30

+5

=

6

+

5

∴

11+2

30

=

6

+

5