" (b) "(3sqrt(7))/(sqrt(5)+sqrt(2))-(5sqrt(5))/(sqrt(2)+sqrt(7))+(2sqrt(2))/(sqrt(7)+sqrt(5))

(2sqrt(7))/(sqrt(5)-sqrt(3))

(3sqrt7)/(sqrt5 + sqrt2) - (5sqrt5)/(sqrt2 + sqrt7) + (2sqrt2)/(sqrt7 + sqrt5) equals____

Simplify: (7sqrt(3))/(sqrt(10)+sqrt(3))-(2sqrt(5))/(sqrt(6)+sqrt(5))-(3sqrt(2))/(sqrt(15)+3sqrt(2))

Simplify: (3sqrt7)/(sqrt5 + sqrt2) - (5 sqrt5)/(sqrt2 + sqrt7) + (2 sqrt2)/(sqrt7 + sqrt5)

(sqrt(7)-sqrt(5))^3 - (sqrt(7)+sqrt(5))^3

(sqrt(3)-sqrt(5))(sqrt(3)+sqrt(5))/(sqrt(7)-2sqrt(5))

(5sqrt(7)+2sqrt(7))(6sqrt(7)+3sqrt(7))=?

Evaluate (sqrt(5)-sqrt(3))/(sqrt(2)+sqrt(7))

Simplify each of the following : (i)(sqrt(2)+1)/(sqrt(2)-1)+(sqrt(2)-1)/(sqrt(2)+1)" "(ii)(sqrt(5)+sqrt(3))/(sqrt(5)-sqrt(3))+(sqrt(5)-sqrt(3))/(sqrt(5)+sqrt(3))" "(iii)(2)/(sqrt(5)+sqrt(3))+(1)/(sqrt(3)+sqrt(2))-(3)/(sqrt(5)+sqrt(2))" "(iv)(sqrt(7)+sqrt(5))/(sqrt(7)-sqrt(5))-(sqrt(7)-sqrt(5))/(sqrt(7)+sqrt(5))