Question

Um capital de 5000,00 aplicado durante 4 nos produziu um montante de 11000,00. determine a taxa de juros dessa aplicaçao.

Answer 1

m=c(1+i)ⁿ
11000=5000(1+i)^4(12)
11000/5000=(1+i)^48
2,2=(1+i)^48
m=c+j
j=cit
11000-5000=cit
6000=5000*i*48
48i=6000/5000
48i=1,2
i=0,025
e 0,025= 2,5/100
2,5% é a taxa

composto use a formula e aplique logaritmo
11000=5000+(5000*i)
m=c(1+i)ⁿ
11000=5000(1+i)^4(12)
11000/5000=(1+i)^48
2,2=(1+i)^48

Answer 2

i=M-C*100/C/t

i=11000-5000*100/5000/4
i=6000*100/5000/4
i=600000/5000/4
i=120/4
i=30
Resposta: 30%a.a.