Question

calculeaza x-y daca:
x= 4/3+5/4+6/5+.......+51/60
y= 1/3+ 1/4+ 1/5+........+ 1/50

Answer 1

Răspuns:

50

Explicație pas cu pas:

4/3+5/4+6/5+.......+51/50

1/3+ 1/4+ 1/5+........+ 1/50  scadem termen cu termen

.............................................

 (4/3-1/3)+(5/4-1/4).............+(51/50=1/50)=

=3/3+4/4+........................+50/50=

=1+1+...............................+1)=50