Question

(1/√1+√2)+(1/√2+√3)+(1/√3+√4).....+(1/√15+√16)​

Answer 1

Answer:

Step-by-step explanation:

1/1+root2=( 1/1+root2)(root2-1/root2-1)

since by rationalisation

=root2-1/1

similarly for all

we get

-1+root9

=3-1

=2