Math. 69.104A Sample Test

Math. 69.104A

DAILY QUIZ 3 & 4 for the week of Sept. 16, 1996


Dr. Angelo Mingarelli
Department of Mathematics and Statistics
Carleton University
Ottawa, Ontario, Canada, K1S 5B6

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1. Solve the equation 4^(5x+2) = 16^3. REMEMBER THE EXAMPLE IN CLASS!
X=5/4
X=4/5
X=-1


2.Solve the equation log (2x-3) = 1. Here log means log with base 10.
x=13/2
x=2
x=-2


3.Solve the equation log {(x-7)/(3x-5)}= log 3. (As before, log means log with base 10)
x=-1
x=0
x=1


4. Let f(x) = 10^x + log (1000). Find the form of the inverse function, F(x) in this case.
F(x) = log (x - 3)
F(x) = log(x) - log(3)
F(x) = log(x)


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