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Určete definiční obor funkce

f(x)=\log\frac{8x+40}{x-6}+3\sqrt{4-x}.f(x)=\log\frac{8x+40}{x-6}+3\sqrt{4-x}.
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Označte intervaly, které tvoří definiční obor funkce f(x)= \sqrt{\,\ln\,(5-x)} + \sqrt{\frac{x^2+2x-3}{2^x-4}} f(x)= \sqrt{\,\ln\,(5-x)} + \sqrt{\frac{x^2+2x-3}{2^x-4}} .

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Určete definiční obor funkce

f(x)=\log(x^2+3x-10)+2\sqrt{5-x}.f(x)=\log(x^2+3x-10)+2\sqrt{5-x}.
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Určete definiční obor funkce f(x)=log(x²-4x+3)-(-6-x)½.
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Vyřešte nerovnici {x^2-5x-6}\geq 0{x^2-5x-6}\geq 0

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Vyřešte nerovnici \frac{-x^2-9x-18}{x^2+4}\geq 0\frac{-x^2-9x-18}{x^2+4}\geq 0
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Vypočtěte největší reálné číslo, které je řešením soustavy nerovnic

9 ≤ 4 - 3x ≤ 13. Zaokrouhlete na dvě desetinná místa.

 

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La Nutrició

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Which of the following statements is NOT TRUE about ideologies?

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Which type of argument does the following example reflect?  

"Shakila learns that all her Chinese friends from Penang are able to speak Hokkien. Shakila comes to the conclusion that a majority of Chinese Penangites speak Hokkien."

    

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