Lis Exerc 3bim Logaritmo

  • November 2019
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Colégio Pio XII Vila Velha – ES

Logaritmo 1- Identifique as sentenças verdadeiras e as falsas. a) log 4 64 = 3 b) log 3 243 = 5 1 c) log 1 = 2 4 2 d) log 1000 = 3 e) log 4 2 = 2

LISTA DE MATEMÁTICA Prof: Heráclito Duarte de Freitas

3° Bimestre b) S = log 2 4 2 + log 10 0,01 - log 9 27

2- Determine x em cada uma destas equações: a) log 3 81 = x 1 =x b) log 5 125 c) log 2 512 = x d) log 10000 = x e) log 0,001 = x 3- Determine as condições de existência de: a) log( x 2 + 3 x) 2 b) log 7 (12 + x − x ) c) log ( x +1) 8 2 d) log 3 ( x − 5 x + 4) e) log ( 2 x −3) 10 2 f) log ( x −1) ( x − 10 x + 24)

4- Resolva as equações: a) log 2 ( x 2 + 5 x + 2) = 4 2 b) log x ( x − 6) = 1 2 c) log 2 x (6 x − 7 x + 3) = 2 d) log ( x −3) ( 2 x − 6) = 2

e) log ( 2−x ) 16 = 2 f) log ( 3− x ) ( x − 1) = 2 2 g) log x ( x − 5 x + 5) = 1

5- Calcule o valor das expressões. a) S = log1 + log8 + log2 + log5 + log125 (propriedade da soma) Prof.: Heráclito

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