What is the value of log3 (-9)?

• log3 (-9)
  Split -9 into 9*(-1).
  => log3(9)(-1)
  =>log3(3^2)(-1)
  Logarithmic rule says the power inside the bracket will come in front of log.
  => 2log3(3)(-1)
  Another logarithmic rule says that when the base and the number are same then the log term cancels out.
  => 2(-1)
  => -2.
  
  Thus , the ans is -2.
• 10 years agoHelpfull: Yes(1) No(2)
• log3(-9)= log3+log(-9)
  =log3+log(3^2*-1)
  =log3+log(3^2)+log(-1)
  =3log3+log(i^2)
  =3log3+2logi
• 10 years agoHelpfull: Yes(0) No(3)
• it is not defined
• 8 years agoHelpfull: Yes(0) No(0)