If `a=sqrt7-sqrt6` then `a-1/a=`

1/(sqrt7 - sqrt6)

1/(sqrt7 - sqrt6)

1/(sqrt7 - sqrt6)

If sqrt7=2.646 then 1/sqrt7 =

If sqrt(6)-sqrt(7) the conjugate of sqrt(6)+sqrt(7)

If a=(sqrt(7)-sqrt(6))/(sqrt(7)+sqrt(6)) and b=(sqrt(7)+sqrt(6))/(sqrt(7)-sqrt(6)), then find the value of a^(2)+b^(2)+ab

If a=(sqrt(7)-sqrt(6))/(sqrt(7)+sqrt(6)) and b=(sqrt(7)+sqrt(6))/(sqrt(7)-sqrt(6)), then find the value of a^(2)+b^(2)+ab

If x=sqrt(7+sqrt(7));y=sqrt(7-sqrt(7)) then find the value of (x^(6)+y^(6))/(14)