Express the following as a single logarithm:
2log 3 - 12\dfrac{1}{2}21log 16 + log 12
45 Likes
Given,
⇒2log 3−12log 24+log 22.3⇒2log 3−12×4×log 2+log 22+log 3⇒2log 3−2log 2+2log 2+log 3⇒2log 3 + log 3⇒3log 3⇒log 33=log 27.\Rightarrow \text{2log 3} - \dfrac{1}{2}\text{log 2}^4 + \text{log 2}^2.3 \\[1em] \Rightarrow \text{2log 3} - \dfrac{1}{2} \times 4 \times \text{log 2} + \text{log 2}^2 + \text{log 3} \\[1em] \Rightarrow \text{2log 3} - 2\text{log 2} + 2\text{log 2} + \text{log 3} \\[1em] \Rightarrow \text{2log 3 + log 3} \\[1em] \Rightarrow \text{3log 3} \\[1em] \Rightarrow \text{log 3}^3 = \text{log 27}.⇒2log 3−21log 24+log 22.3⇒2log 3−21×4×log 2+log 22+log 3⇒2log 3−2log 2+2log 2+log 3⇒2log 3 + log 3⇒3log 3⇒log 33=log 27.
Hence, 2log 3 - 12\dfrac{1}{2}21log 16 + log 12 = log 27.
Answered By
22 Likes
Evaluate the following:
2log 5 + log 3 + 3log 2 - 12\dfrac{1}{2}21 log 36 - 2log 10
2log105 + log108 - 12\dfrac{1}{2}21log104
2log105 - log102 + 3log104 + 1
12\dfrac{1}{2}21log 36 + 2log 8 - log 1.5