Question

calculeaza folosind proprietati adunarii.s=(1/2+1/3+1/4+1/5+1/6)+(1/2+2/3+3/4+4/5+5/6)​

Answer 1

Răspuns:

5

Explicație pas cu pas:

S = (1/2+1/3+1/4+1/5+1/6)+(1/2+2/3+3/4+4/5+5/6)​

= 1/2+1/2 + 1/3+2/3 + 1/4+3/4 + 1/5+4/5 + 1/6+5/6

= 1 + 1 + 1 + 1 + 1

= 5