Question

& log 34 + log 4 +3.09. - 1og 9 = (a) 2log 30 (b) log 30 (c)+10g30 (d) none of these

JEE/Engineering Exams

Maths

Solution

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( begin{aligned}{log left(frac{38+}{5} times frac{81}{32} times frac{25}{27 times 5}right)}{lg 100=} & log (10)^{2} &=2 log 10 &=121(D) end{aligned} )