Enter a T or an F in each answer space below to indicate whether the corresponding statement is true or false.
You must get all of the answers correct to receive credit.
1. $\frac {\ln x}{\ln y} = \ln x - \ln y$
2. $(\ln a)^ b = b \ln a$
3. $\ln(x-y) = \ln x - \ln y$
4. $\log_2 ab = \log_2 a + \log_2 b$