(3log₇2-log₇24):(log₇3+log₇9)=(log₇8-log₇24):(log₇3+log₇9)=(log₇8/24):(log₇3*9)=(log₇1/3):(log₇27)=(log₃1/3/log₃7):(log₃27/log₃7)=(-1/log₃7):(3/log₃7)=(-1/log₃7)*(log₃7/3)=-1/3
3log₇2=log₇8 это пятое свойство в картинке.
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(3log₇2-log₇24):(log₇3+log₇9)=(log₇8-log₇24):(log₇3+log₇9)=(log₇8/24):(log₇3*9)=(log₇1/3):(log₇27)=(log₃1/3/log₃7):(log₃27/log₃7)=(-1/log₃7):(3/log₃7)=(-1/log₃7)*(log₃7/3)=-1/3
3log₇2=log₇8 это пятое свойство в картинке.