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If ` log_(a)b=2, log_(b)c=2, and log_(3) c= 3 + log_(3)` a,then the value of c/(ab)is ________. |
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Answer» Correct Answer - 3 ` log_(3) c = 3 + log _(3) a ` ` or log_(3) c/a = 3 or c = 27 a ` …(i) ` log_(a) b = 2, log_(b) c = 2` ` rArr log_(a) b* log _(b) c = 4` ` rArr log_(a) c = 4` ` rArr c = 4^(4)`...(ii) From Eqs.(i) and (ii), we get a = 3, c = 81. From ` log_(a) b = 2," we have " b = a^(2) = 9`. Hence, c/(ab) = 3. |
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