Question

show that the following are rational:
(1) 1/1+√2+1/√2+√3+1/√3+√4

(2) x²- xy +y² where x=√2-1/√2+1 and y=√2+1/√2-1


plzz solve this as fast as possible but plz make sure that the answer is correct​

Answer 1

Answer:

thank you for pubg