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Mathematics 8 Online
OpenStudy (anonymous):

really need help, logarithm question!

Nnesha (nnesha):

log log log quotient rule\[\huge\rm log_b y - \log_b x = \log_b \frac{ x }{ y}\] to condense you can change subtraction to division product rule \[\huge\rm log_b x + \log_b y = \log_b( x \times y )\] addition ----> multiplication power rule \[\huge\rm log_b x^y = y \log_b x\] CHANGE OF BASE FORMULA: change of base formula \[\huge\rm log_a b = \frac{ \log b }{ \log a }\] hint: \[\huge\rm log_b x = \log_b y\] \[\huge\rm\cancel { log_b} x = \cancel{\log_b} y\] x=y

OpenStudy (anonymous):

thanks! sorry my openstudy was spazzing i couldnt even see my question after i posted it. here is what im answering now. can you tell if im correct? @Nnesha

Nnesha (nnesha):

the key is here signs now look at the properties that i gave you and then look at ur question again give it a shO_Ot one more time !

OpenStudy (anonymous):

oh! my bad it would be quotient. they divide.

Nnesha (nnesha):

nope there is not any number in front of log

Nnesha (nnesha):

yeah yay! you got it there is negative sign quotient

Nnesha (nnesha):

write those properties on ur notebook :-)

OpenStudy (anonymous):

yeah i got it now. i actually have them written down but i just get mixed up. thanks!

Nnesha (nnesha):

great :-) my pleasure :-)

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