Evaluate :

`1/( 1 + sqrt2 ) + 1/( sqrt2 + sqrt3 ) + 1/( sqrt3 + sqrt4 ) + 1/( sqrt15 + sqrt16 ) `

1/(1+ sqrt2 + sqrt3)

Evaluate : 1/( 1 + sqrt (2) ) + 1/( sqrt(2) + sqrt (3) ) + 1/ ( sqrt(3) + sqrt (4) )

1/(1-sqrt2-sqrt3)=

The value of { 1/(sqrt6 - sqrt5) - 1/(sqrt5 - sqrt4) + 1/(sqrt4 - sqrt3) - 1/(sqrt3 - sqrt2) + 1/(sqrt2 - 1)} is :

(sqrt2 +1)/(sqrt3)

Determine the value of ............... (1)/(sqrt1 +sqrt2) +(1)/(sqrt2 + sqrt3) +(1)/(sqrt3 + sqrt4) + ……+ (1)/(sqrt120 + sqrt121)

Evaluate 1/(1+sqrt(2))+1/(sqrt(2)+sqrt(3))+1/(sqrt(3)+sqrt(4))

(1)/(sqrt(2)+sqrt(3))+(1)/(sqrt(3)+sqrt(4))

The sum of the series 1/(sqrt2 + sqrt1) + 1/(sqrt2 + sqrt3) + ……+ 1/ (sqrt120 + sqrt121) is .