`20-4sqrt(8)+7sqrt(18) , sqrt(63)+sqrt(28)+sqrt(175)`

8sqrt(5)+sqrt(20)-sqrt(125)

4sqrt(3)-7sqrt(12)+2sqrt(75)=

Show that each of the following progression is an AP. Find the common difference and the next term of each. (i) sqrt(7), sqrt(28), sqrt(63), …. (ii) sqrt(18), sqrt(50), sqrt(98),

Simplify by raationalising the denominator. (i) (7sqrt(3) - 5sqrt(2))/(sqrt(48) + sqrt(18)) (ii) (2sqrt(6) -sqrt(5))/(3sqrt(5)-2sqrt(6))

What is the value of (1/(sqrt(9) - sqrt(8)) - 1/(sqrt(8) - sqrt(7)) + 1/(sqrt(7) - sqrt(6)) - 1/(sqrt(6) - sqrt(5)) + 1/(sqrt(5) - sqrt(4))) ?

(5sqrt(28))/(3sqrt(7))

(4sqrt(3)+5sqrt(2))/(sqrt(48)+sqrt(18))

sqrt(7+4sqrt3) - sqrt(7-4sqrt3) =