Write the logarithmic equation for :

$x = ab \sqrt{\dfrac{a - b}{a + b}}$

The relation $\sqrt[3]{64} = 4$ in logarithmic form is:

1. log₆₄ 4 = 3

2. $\log_4 \space 64 = \dfrac{1}{3}$

3. $\log_{64} \space 4 = \dfrac{1}{3}$

4. $\log_{64} \space \dfrac{1}{3} = 4$

$\log_{\sqrt{2}} \space \Big(4\sqrt{2}\Big) =$

1. 8

2. 6

3. 4

4. 5

$\log_3 \Big(\dfrac{1}{27}\Big) =$

1. 3

2. $\dfrac{1}{3}$

3. $-\dfrac{1}{3}$

4. -3