solve-2-x-4x-find-x-

Question Number 171771 by Mikenice last updated on 20/Jun/22

s o l v e :

2^{x} = 4 x . f i n d x

Answered by mathocean1 last updated on 20/Jun/22

S_{R} = {4}

Answered by mr W last updated on 20/Jun/22

e^{x \ln 2} = 4 x

(- x \ln 2) e^{- x \ln 2} = - \frac{\ln 2}{4}

- x \ln 2 = W (- \frac{\ln 2}{4})

\Rightarrow x = - \frac{W (- \frac{\ln 2}{4})}{\ln 2} = {\begin{cases} 4 \\ 0.3099 \end{cases}

Commented by daus last updated on 21/Jun/22

h o w l a m b e r t f u n c t i o n w o r k s ?

Commented by mr W last updated on 21/Jun/22

{A e}^{A} = B \Rightarrow A = W (B)

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