已知2^(6a)=3^(3b)=6^(2c),(abc不等于0), 则1/(6a)+1/(3b)-1/(2c)=?
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2^(6a)=3^(3b)=6^(2c)两边取对数,则6alg2=3blg3=2clg6所以6alg2+3blg3=4c(lg2+lg3) 所以6a=4c,3b=4c1/(6a)+1/(3b)-1/(2c)=0
已知2^(6a)=3^(3b)=6^(2c),(abc不等于0), 则1/(6a)+1/(3b)-1/(2c)=?
2^(6a)=3^(3b)=6^(2c)两边取对数,则6alg2=3blg3=2clg6所以6alg2+3blg3=4c(lg2+lg3) 所以6a=4c,3b=4c1/(6a)+1/(3b)-1/(2c)=0