Evaluate `4(1/2(sqrt(3)+1))^3 + 2(1/2(sqrt(3)+1))^2-8(1/2(sqrt(3)+1))`

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

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

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

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

Find the value of (1)/(2+sqrt(3))+(1)/(2-sqrt(3))

The value of sin(1/4sin^(-1)(sqrt(63))/8) is 1/(sqrt(2)) (b) 1/(sqrt(3)) (c) 1/(2sqrt(2)) (d) 1/(3sqrt(3))

x=(1)/(1+sqrt(2))+(1)/(sqrt(2)+sqrt(3))+(1)/(sqrt(3)+2)=