if log2=0.3010,log3=0.4771, log7=0.8450,find the value oflog 84
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We know that log(abc..)=loga+logb+logc+....
- log(84)=log(2×2×3×7)
- =log2+log2+log3+log7
- =0.3010+0.3010+0.4771+0.8450
- =1.9241
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