Quiz about Quiz sobre Logaritmos e Propriedades

Question 1

Calcule o valor de $$\log_{10} 1000$$ .

Accepted Answer

3

Answer

2

Answer

4

Answer

1

Question 2

Qual das alternativas representa corretamente a propriedade do logaritmo do produto?

Accepted Answer

$$\log_b (xy) = \log_b x + \log_b y$$

Answer

$$\log_b (x+y) = \log_b x + \log_b y$$

Answer

$$\log_b (xy) = \log_b x \cdot \log_b y$$

Answer

$$\log_b (x/y) = \log_b x + \log_b y$$

Question 3

Converta $$\log_2 8$$ para a base 10.

Accepted Answer

$$\frac{\log_{10} 8}{\log_{10} 2}$$

Answer

$$\frac{\log_{10} 2}{\log_{10} 8}$$

Answer

$$\log_{10} 8 \cdot \log_{10} 2$$

Answer

$$\log_{10} (8 \cdot 2)$$

Question 4

Qual das alternativas representa corretamente a propriedade do logaritmo do quociente?

Accepted Answer

$$\log_b \left(\frac{x}{y}\right) = \log_b x - \log_b y$$

Answer

$$\log_b \left(\frac{x}{y}\right) = \log_b x + \log_b y$$

Answer

$$\log_b \left(\frac{x}{y}\right) = \frac{\log_b x}{\log_b y}$$

Answer

$$\log_b \left(\frac{x}{y}\right) = \log_b y - \log_b x$$

Question 5

Calcule o valor de $$\log_{10} 100$$ .

Accepted Answer

2

Answer

1

Answer

10

Answer

0

Question 6

Converta $$\log_5 25$$ para a base 10.

Accepted Answer

$$\frac{\log_{10} 25}{\log_{10} 5}$$

Answer

$$\frac{\log_{10} 5}{\log_{10} 25}$$

Answer

$$\log_{10} 25 \cdot \log_{10} 5$$

Answer

$$\log_{10} (25 \cdot 5)$$

Question 7

Calcule o valor de $$\log_{10} 0,1$$ .

Accepted Answer

$$-1$$

Answer

$$1$$

Answer

$$0$$

Answer

$$-2$$

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