Question

2.Scrieti urmatoarele adunarii cu ajutorul inmultirii si apoi efectuati calculele:

a) 1/3+1/3+1/3
b) 7/13+7/13+7/13+7/13
c) 3/16+3/16+..+3/16 (5 termeni)
d)1/5+1/5+..+1/5 ( 10 termeni)
e) 1/10+1/10+...+1/10 (50 termeni)
f) 5/23+5/23+...+5/23

Va rog ajutati-ma ! :

Answer 1

Explicație pas cu pas:

a) 1/3+1/3+1/3 = 3x(1/3) = 3/3 = 1 ;

b) 7/13+7/13+7/13+7/13 = 4x(7/13) = 28/13 ;

c) = 5x(3/16) = 15/16 ;

d) = 10x(1/5) = 10/5 = 2 ;

e) = 50x(1/10) = 50/10 = 5 ;

f) (nu ai scris cati termeni ; punem 100)

= 100x(5/23) = 500/23 ;