Resposta :
Resolução!
1 ) Juro simples
M = C ( 1 + i * t )
M = 4000 ( 1 + 0,05 * 3 )
M = 4000 ( 1 + 0,15 )
M = 4000 * 1,15
M = 4600
R$ 4.600,00
1 ) Juro Composto
M = C ( 1 + i )^t
M = 4000 ( 1 + 0,05 )^3
M = 4000 ( 1,05 )^3
M = 4000 * 1,157625
M = 4630,5
R$ 4.630,50
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2 ) Juro simples
M = C ( 1 + i * t )
M = 30000 ( 1 + 0,06 * 24 )
M = 30000 ( 1 + 1,44 )
M = 30000 * 2,44
M = 73200
R$ 73.200,00
2 ) Juro Composto
M = C ( 1 + i )^t
M = 30000 ( 1 + 0,06 )^24
M = 30000 ( 1,06 )^24
M = 30000 * 4,048934
M = 121468,02