Respuesta :

mhanifa

Answer:

(c) n(n+1)/√2

Step-by-step explanation:

√2+√8+√18+√32+...

1√2+2√2+3√2+4√2+...+n√2

  • First term= √2
  • Common difference= √2
  • Sₙ= n/2(2√2+(n-1)√2)= n/2(n√2+√2)=n(n+1)√2/2= n(n+1)/√2

Option (c) is correct

Answer:

just to make this easy it id n(n+1)/√2 so C

Step-by-step explanation: