Question

hallar la suma de 2 , 4 , 6.........,a300

Answer 1

2 + 4 + 6........., +300  = n(n+1)

2 + 4 + 6 ......... + 2n  = n(n+1)

2n = 300

n = 300/2

n = 150

Sumatoria

S = n(n+1)

S = 150(150+1)

S = 150(151)

S = 22650