Join the IDNLearn.com community and start getting the answers you need today. Our experts provide timely and precise responses to help you understand and solve any issue you face.

Fill in the missing values to make the equations true.

(a) [tex]\log_3 2 + \log_3 7 = \log_3 \square[/tex]

(b) [tex]\log_2 5 - \log_2 \square = \log_2 \frac{5}{3}[/tex]

(c) [tex]\log_6 \frac{1}{32} = -5 \log_6 \square[/tex]


Sagot :

Sure, let's work through each equation step-by-step to fill in the missing values:

### Part (a)
The equation is given as:
[tex]\[ \log_3 2 + \log_3 7 = \log_3 \square \][/tex]

We can use the property of logarithms that states [tex]\(\log_a b + \log_a c = \log_a (bc)\)[/tex].

So,
[tex]\[ \log_3 2 + \log_3 7 = \log_3 (2 \cdot 7) \][/tex]
[tex]\[ 2 \cdot 7 = 14 \][/tex]

Therefore, the missing value is:
[tex]\[ \log_3 2 + \log_3 7 = \log_3 14 \][/tex]

### Part (b)
The equation is given as:
[tex]\[ \log_2 5 - \log_2 \square = \log_2 \frac{5}{3} \][/tex]

We can use the property of logarithms that states [tex]\(\log_a b - \log_a c = \log_a \left(\frac{b}{c}\right) \)[/tex].

So,
[tex]\[ \log_2 5 - \log_2 x = \log_2 \frac{5}{3} \][/tex]
For these to be equal, [tex]\( x \)[/tex] must be equal to [tex]\( 3 \)[/tex].

Therefore, the missing value is:
[tex]\[ \log_2 5 - \log_2 3 = \log_2 \frac{5}{3} \][/tex]

### Part (c)
The equation is given as:
[tex]\[ \log_6 \frac{1}{32} = -5 \log_6 \square \][/tex]

We can use the property of logarithms that states [tex]\(\log_a b^c = c \log_a b \)[/tex].

First, let's express [tex]\(\frac{1}{32}\)[/tex] as a power of 2:
[tex]\[ \frac{1}{32} = 32^{-1} = (2^5)^{-1} = 2^{-5} \][/tex]

So,
[tex]\[ \log_6 (2^{-5}) = -5 \log_6 2 \][/tex]

Therefore, the missing value is:
[tex]\[ \log_6 \frac{1}{32} = -5 \log_6 2 \][/tex]

In summary, the missing values are:
[tex]\[ \begin{aligned} \text{(a)} & \quad \log_3 2 + \log_3 7 = \log_3 14 \\ \text{(b)} & \quad \log_2 5 - \log_2 3 = \log_2 \frac{5}{3} \\ \text{(c)} & \quad \log_6 \frac{1}{32} = -5 \log_6 2 \\ \end{aligned} \][/tex]