Posted by jh on Sunday, February 14, 2010 at 12:44am.
Evaluate the expression without using a calculator:
log4(2)= ____?
Use a calculator to find the logarithm accurate to four decimal places:
log4(27)= ____?

Math  Reiny, Sunday, February 14, 2010 at 8:10am
log4(2)= ____?
What exponent must 4 be raised to, to obtain 2
that is,
4^? = 2
Isn't √4 = 2 ? or
4^(1/2) = 2
for the second,
log_{4} 27
= log 27/log 4 , now use your calculator.