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## Main Question or Discussion Point

I know in Logarithms log

and

log

Chain Rule.

Now I read Calculus, I found out about the Chain rule, are they the same?? Looks like it. But because of my poor English reading, I couldn't understand the text. Can some one explain what Chain rule is?

_{a}b * log_{c}d = log_{a}d * log_{c}band

log

_{a}b * log_{b}c = log_{a}c.Chain Rule.

Now I read Calculus, I found out about the Chain rule, are they the same?? Looks like it. But because of my poor English reading, I couldn't understand the text. Can some one explain what Chain rule is?