7C,.\ LCTI t- T I I- DOBA NZI I..OR

A.Dobantla simpli

Procentul de dohfrndi. Proccntuldc dobindl arata ca pcntru sunra de lf]0 dc leiitttr-un an sc acortli r lci dobandi.O depuncrc dc P lci aducc intr-un an o dobanda

P P.r.rtde

-.

,' lci iar ilr rt atti. 1:

-,

lci .t00 100

E.rentplu LCe dobAnzi aduc 20.000 lci cr,r urr proccnt dc doblnda dc3.5Yn irr 5 arri ?in acest caz.P=20000, r:3.5oh gi r=5. Dupi lorrrula dobAnzii

20000. 3.5 . 5I_-=35()0.SuttladepLrs[aduccirl5arliodobirld[de3500lci.100

Il.Dobiinda conrpusiP.t'

O sunra P6 dcpusa cu Lnr procent de dobarrdl r' producc irrtr-un an o dobArrr00

,' ( ,')irral doilcaansulnadcpusirafiP;=P,,IP,, '

-=P,, I t*

-

l:PeRundcl(x) \ t00 )R:l+ffi .irrtr-urr arr accasti srrnri sc rttljorcaza..' fr gi dcvirrc

t'P::P'+p' =PrR=P,,R].Acclcagi considercntc sunt valabilc pentru arrii 3,4,....,1.100

La sflrgitul cclui dc al rr-lca an sunra P,, a crcscut prirr adaugtrrea dobanzilor la

Prr=PoRn, unde R:1* -1- poarli nunrele de lactor tje fructificare.t00

Fonluladobinziisinrple

P'r.ttt-.stttttu.clap * prr,tcettl .drsb. x nr.urti

r00 Dobalrda=100

attul Depuncrca irr lei lainccputrrl anului

Dobarrda irr lci lasflrsitul arrului

Dcpurrcrea'irr lci lasmr$itul anrrlui

I

2345

t_s0.0t)54-5.0059 r ..15(r19.09(;88.26

45.0046.3541.1449.1750.6-s

54s.0059 r .35639.09(r88.2(r7-r8.9 r