" (i) "(1)/(sqrt(7))

Prove that (i) (1)/(3+sqrt(7)) + (1)/(sqrt(7)+sqrt(5))+(1)/(sqrt(5)+sqrt(3)) +(1)/(sqrt(3)+1)=1 (ii) (1)/(1+sqrt(2))+(1)/(sqrt(2)+sqrt(3))+(1)/(sqrt(3)+sqrt(4))+(1)/(sqrt(4)+sqrt(5))+(1)/(sqrt(5)+sqrt(6))+(1)/(sqrt(6)+sqrt(7)) +(1)/(sqrt(7)+sqrt(8))+(1)/(sqrt(8) + sqrt(9)) = 2

Prove that (1)/(sqrt(7))=(1)/(sqrt(7))times(sqrt(7))/(sqrt(7))

Rationalise the denominator of (i) 1/sqrt7 (ii) 1/(sqrt5 + sqrt3) (iii) 1/(sqrt7 -1) (iv) 1/(sqrt(7) - sqrt(6))

If sqrt(7) = 2.646 then (1)/(sqrt(7)) =?

If x = sqrt(7)+(1)/(sqrt(7)) , then the value of (128)^(x^(2)) is-

If x = sqrt(7)+(1)/(sqrt(7)) , then the value of (128)^(x^(2)) is-

If x = sqrt(7)+(1)/(sqrt(7)) , then the value of (128)^(x^(2)) is-

Find the value of (1)/(sqrt(7))

Rationalise (1)/(sqrt(7)-2)

If x=(1)/(2)(sqrt(7)+(1)/(sqrt(7))) ,then , log_(27)((sqrt(x^(2)-1))/(x-sqrt(x^(2)-1))) is equal to