Question

Solotia ecuatiei x=1+3 +5+7+......+1999, in multimea numerelor naturale este

Answer 1

x = 1+3+5+7+...+1999

x = [(1999+1)/2]²

x = (2000/2)²

x = 1000²

x = 1000000

Answer 2

x=1+3+5+7+......+1999

suma nr impare

x = [(1999+1)/2]²

x = (2000/2)²

x = 1000²

x = 1000000

sper ca te-am ajutat