a + b + c + d = 9.846
d = ?
_________________
a = 4.533
b = 4533 - 2.230 = 2.303
c = 2000
4533 + 2303 + 2000 = 8.836 ( suma primilor 3 termeni )
8836 + d = 9.846
d = 9846 - 8836
d = 1.010
Salut!
Notez :
a = primul termen
b = al doilea termen
c = al treilea termen
d = al patrulea termen
d=?
a = 4 533
b= 4533 - 2 230
b = 2303
c= 2000
Suma primilor trei termeni ( adunam termenii) :
a + b + c = ?
4 533 + 2 303 + 2 000 = 8836 suma
Aflam al patrulea termen ( d ) :
8 836 + d = 9 846
d = 9 846 - 8 836
d = 1 010
Numerele căutate:
a = 4 553
b = 2 303
c = 2000
d = 1010
Succes!
