Simplify :

`( 2 - sqrt5 )/ sqrt5`

(2 + sqrt5)/(2 - sqrt5)

Simplify : ((2 sqrt(45) + 3 sqrt(20)))/(2sqrt5)

Simplify: (sqrt(5)-2)/(sqrt(5)+2)-(sqrt(5)+2)/(sqrt(5)-2)

Simplify: (5+sqrt5)(5-sqrt5)

Simplify (sqrt5 - sqrt3)(sqrt5 + sqrt 3)

Simplify : (5+sqrt(5))(5-sqrt(5)) (ii) (3+2sqrt(2))(3-2sqrt(2))

Simplify (sqrt(2)-1+sqrt(6))/sqrt(5)

Simplify: (4+sqrt(5))/(4-sqrt(5))+(4-sqrt(5))/(4+sqrt(5))

Simplify: (3sqrt(2)-2sqrt(2))/(3sqrt(2)+2sqrt(3))+(sqrt(12))/(sqrt(3)-sqrt(2)) (ii) (sqrt(5)+sqrt(3))/(sqrt(5)-sqrt(3))+(sqrt(5)-sqrt(3))/(sqrt(5)+sqrt(3))