using inductive reasoning word prblem

[corrido88]

is the following conjecture true for x=5, x=10, and x=15?

for any x, the sum of the whole numbers 1 through x is equal to 1 over 2 x(x+1).

 

[Deleted member 4993]

is the following conjecture true for x=5, x=10, and x=15? <<< Yes

for any x, the sum of the whole numbers 1 through x is equal to 1 over 2 x(x+1).