If `a=6+2sqrt(3)` find the value of `a-(1)/(a)`

If a=6-sqrt(35), find the value of a^(2)+(1)/(a^(2))

If a=1-sqrt(2),"then find the value of "(a-(1)/(a))^(3)

If a=1-sqrt(2),"then find the value of "(a-(1)/(a))^(3)

If A=5+2sqrt(6), find the value of sqrt(A)+(1)/(sqrt(A))

If a=(1+i)/(sqrt(2)) find the value of a^(6)+a^(4)+a^(2)+1

Given,sqrt(2)=1.414 and sqrt(6)=2.449, find the value of (1)/(sqrt(3)-sqrt(2)-1) correct to 3 places of decimal.