rumus umum 1+2+3+...+n =... a.2n(n+1) b.n(n+1) c.1/2n(n+1) d.1/2n(n+1)(n+2) pakai cara ya kak,thx
Matematika
yunitarealreal
Pertanyaan
rumus umum 1+2+3+...+n =...
a.2n(n+1)
b.n(n+1)
c.1/2n(n+1)
d.1/2n(n+1)(n+2)
pakai cara ya kak,thx
a.2n(n+1)
b.n(n+1)
c.1/2n(n+1)
d.1/2n(n+1)(n+2)
pakai cara ya kak,thx
