berggirls4 berggirls4
  • 01-08-2018
  • Mathematics
contestada

What is the value of???

Please don’t just pick one....it needs to be right! Thanks

What is the value of Please dont just pick oneit needs to be right Thanks class=

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Riia
Riia Riia
  • 02-08-2018

To find the value of the given summation, we need to plug n=2,3,4,5,6 and find the value of the expression. And finally we need to add all of them .

When n=2, we will get 0.5 .

When n =3, we will get 1.

When n =4, we will get 3

When n =5, we will get 12

When n=6, we will get 60

Adding them, we will get 0.5+1+3+12+60 = 76.5

Therefore correct option is the last option .

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