Logarithms, SMB-013 Evaluate `log_a 18` given `log_a 2=0.431` and `log_a 3=0.683`. (2 marks) Show Answers Only `1.797` Show Worked Solution `log_a 18` `=log_a (3^2xx2)` `=log_a 3^2+log_a 2` `=2log_a 3+log_a 2` `=2 xx 0.683 + 0.431` `=1.797`