funcao_exponencial_1

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Lista de Exercícios – Função Exponencial

Matemática 1- Resolva as equações exponenciais.

Professor: Heráclito

a) 3 x = 81 b) 8 x =16 c) 7

=

x

1 49

d) ( 2 x ) x +1 = 64 e) 3 x

2

+2

= 27 x

x

f) 2 2 = 16 g) 81 ⋅ 27 x = 3 x

2

17 4 2x x i) 3 − 4 ⋅ 3 + 3 = 0 j) 3 x − 3 ⋅ 3 −x = 2 k) 2 2 x − 9 ⋅ 2 x + 8 = 0 l) 4 x − 6 ⋅ 2 x − 16 = 0 m) 5 ⋅ 25 x − 26 ⋅ 5 x + 5 = 0 h) 2 + 2 x

−x

=

2- Resolva os sistemas de equações exponenciais.

 2 x ⋅ 2 y = 32  x b) 5 1  y=  5 125

 2 = 4 a)  x− y  3 = 81 x+ y

3- Resolva as inequações exponenciais. a) 3 x > 9 x

1 1  b)   ≤ 16 2 x

1  > 5 49 7 1 x d) 25 ≤ 125 c) 

x

4  27   ≥ 9  8  100 x f) (0,3) < 9 e) 

1  g)   3

x 2 −5 x

h) 4 > x

1  ≥  3

−4

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