`[(6sqrt7)^2+(6sqrt7)^(- 2)][(6 sqrt7)^4-1+(6sqrt7 )^(- 4)]`

1/(sqrt7 - sqrt6)

1/(sqrt7 - sqrt6)

1/(sqrt7 - sqrt6)

sqrt7/(sqrt(16+6 sqrt7)-sqrt(16-6 sqrt7)) = ?

Evaluate the product of [(sqrt5+sqrt6+sqrt7)/2^(1/4)][(sqrt6+sqrt7-sqrt5)/2^(1/3)][(sqrt5+sqrt7-sqrt6)/2^(3/4)][(sqrt5+sqrt6-sqrt7)/2^(2/3)]

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

(1)/(sqrt(7)-sqrt(6))

sqrt7y^(2)-6y-13sqrt7=0 :