another log math Q

Question

evalute the following:

log3 1







P.S. ~~~ log3,,,個3是在log嘅下面好細粒架,,,而個1就唔係

thanks

Answer 1

log 3 1
= log 1 / log 3

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對數函數圖像
because log 1 = 0
therefore.
log 3 1
= log 1 / log 3
= 0 / log 3
= 0