waecmaths question:
If ${{\log }_{x}}2=0.3$ evaluate ${{\log }_{x}}8$
Option A:
2.4
Option B:
1.2
Option C:
0.9
Option D:
0.6
waecmaths solution:
$\begin{align} & \text{Given }{{\log }_{x}}2=0.3 \\ & {{\log }_{x}}8={{\log }_{x}}{{2}^{3}} \\ & {{\log }_{x}}8=3{{\log }_{x}}2=3(0.3)=0.9 \\\end{align}$
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