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March 26, 2017

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This is a logs question

If u=x/y^2, which expression is equivalent to log u?

1) log x + 2 log y
2) 2(log x- log y)
3) 2(log x + log y)
4) log x- 2 log y

  • Trigonometry - ,

    log(x/y^2) = log(x) - log(y^2)
    so, (4)

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