If log 27 = 1.731, then the value of log 9 is:  Select: A) 0.934 B) 0.945 C) 0.954 D) 1.156 E) 0.987
log 27 = 1.731   log (33 ) = 1.731   3 log 3 = 1.731   log 3 = 0.578   log 9 = log(32 ) = 2 log 3 = (2 x 0.578) = 1.156.   Answer: Option 1.156
<result>D</result>
If log 27 = 1.731, then the value of log 9 is: