Thread: logarithmic equation

Is this statement true?

log (-3)+log (-4)=log 12

using the log product rule

log (-3)(-4)=log 12
log 12=log 12 therefore the statement is true.

is this right?

Originally Posted by jepal

Is this statement true?

log (-3)+log (-4)=log 12

using the log product rule

log (-3)(-4)=log 12
log 12=log 12 therefore the statement is true.

is this right?

No, the logs of negative numbers are not defined on the real plane.