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Popular >

simplify ln(5/2 e^{-x})

Solution

simplify

ln (\frac{5}{2} e^{- x})

Solution

ln (5) - ln (2) - x

Solution steps

ln (\frac{5}{2} e^{- x})

Apply log rule:

lo g_{c} (ab) = lo g_{c} (a) + lo g_{c} (b)

ln (\frac{5}{2} e^{- x}) = ln (\frac{5}{2}) + ln (e^{- x})

= ln (\frac{5}{2}) + ln (e^{- x})

Apply log rule:

lo g_{a} (x^{b}) = b \cdot lo g_{a} (x)

ln (e^{- x}) = - x ln (e)

= ln (\frac{5}{2}) - x ln (e)

Apply log rule:

lo g_{c} (\frac{a}{b}) = lo g_{c} (a) - lo g_{c} (b)

ln (\frac{5}{2}) = ln (5) - ln (2)

= ln (5) - ln (2) - ln (e) x

x ln (e) = x

= ln (5) - ln (2) - x

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Frequently Asked Questions (FAQ)

What is ln(5/2 e^{-x}) ?
The solution to ln(5/2 e^{-x}) is ln(5)-ln(2)-x