What is simplify-log_{10}(4.21*10^{-5}) ?

The solution to simplify-log_{10}(4.21*10^{-5}) is -log_{10}(4.21)+5

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simplify-log_{10}(4.21*10^{-5})

simplify

- lo g_{10} (4.21 \cdot 1 0^{- 5})

- lo g_{10} (4.21) + 5

Decimal Notation

4.37571 \dots

Solution steps

- lo g_{10} (4.21 \cdot 1 0^{- 5})

Apply log rule:

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

lo g_{10} (4.21 \cdot 1 0^{- 5}) = lo g_{10} (4.21) + lo g_{10} (1 0^{- 5})

= - (lo g_{10} (4.21) + lo g_{10} (1 0^{- 5}))

Apply log rule:

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

lo g_{10} (1 0^{- 5}) = - 5 lo g_{10} (10)

= - (lo g_{10} (4.21) - 5 lo g_{10} (10))

5 lo g_{10} (10) = 5

= - (lo g_{10} (4.21) - 5)

Distribute parentheses

= - (lo g_{10} (4.21)) - (- 5)

Apply minus-plus rules

- (- a) = a, - (a) = - a

= - lo g_{10} (4.21) + 5

- lo g_{10} (3.7 \cdot 1 0^{- 7})

ln (\frac{210 e ^{x}}{4.1 + 1.2 e ^{x}})

ln (\frac{21}{2 x}) - ln_{4} (21)

\frac{1}{6} ln (\frac{x - 3}{x + 3})

ln (\frac{x}{5}) + \frac{x ^{2}}{25}

What is simplify-log_{10}(4.21*10^{-5}) ?
The solution to simplify-log_{10}(4.21*10^{-5}) is -log_{10}(4.21)+5