Evaluate `15/( sqrt10+sqrt20+sqrt40-sqrt5-sqrt80)` is being given that `sqrt5=2.236` and `sqrt10=3.162`

Evaluate : (15)/(sqrt(10)+sqrt(20)+sqrt(40)-sqrt(5)-sqrt(50)), is being given that sqrt(5)=2.236 and sqrt(10)=3.1362

(4-sqrt5)/sqrt10

(2sqrt3+sqrt5)(2sqrt3+sqrt5)

Evaluate after rationalising the denominator of (25)/(sqrt(40) - sqrt(80)) , it being given that sqrt(5) = 2.236 and sqrt(10) = 3.162

(2sqrt3 + sqrt5)(2sqrt3 - sqrt5)

Evaluate : ( sqrt5 - sqrt2 ) times ( sqrt5 + sqrt2 )

Evaluate (sqrt(5)-sqrt(3))/(sqrt(5)-sqrt(3))

Find the value of (6)/(sqrt(5)-sqrt(3)), it being given that sqrt(3)=1.732 and sqrt(5)=2.236

Evaluate |[sqrt(3), sqrt(5)],[-sqrt(5), 3sqrt(3)]|