Math, asked by Iufh, 3 months ago

If the mean of 28, 34, 41,23,45
18,21 is x
then the value of 2-
logx2-logx3-log x5 is​

Answers

Answered by MaheswariS
3

\underline{\textbf{Given:}}

\textsf{Mean of 28,34,41,23,45,18,21 is x}

\underline{\textbf{To find:}}

\textsf{The value of}

\mathsf{2-log\,_x2-log\,_x3-log\,_x5}

\underline{\textbf{Solution:}}

\textsf{Mean of 28,34,41,23,45,18,21 is x}

\implies\mathsf{x=\dfrac{28+34+41+23+45+18+21}{7}}

\implies\mathsf{x=\dfrac{210}{7}}

\implies\mathsf{x=30}

\mathsf{Consider,}

\mathsf{2-log\,_x\,2-log\,_x\,3-log\,_x\,5}

\mathsf{=2-(log\,_x\,2+log\,_x\,3+log\,_x\,5)}

\mathsf{=2-(log\,_x\,(2{\times}3{\times}5))}

\mathsf{=2-(log\,_x\,30)}

\mathsf{=2-(log\,_{30}\,30)}

\mathsf{=2-1}

\mathsf{=1}

\implies\boxed{\mathsf{2-log\,_x\,2-log\,_x\,3-log\,_x\,5=1}}

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