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mathmath333

  • one year ago

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  1. mathmath333
    • one year ago
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    \(\large \color{black}{\begin{align}& \normalsize \text{which of the following is an odd function}\hspace{.33em}\\~\\ & a.)\ 2^{-x\cdot x} \hspace{.33em}\\~\\ & b.)\ 2^{x-x\cdot x\cdot x\cdot x} \hspace{.33em}\\~\\ & c.)\ \normalsize \text{both a.) and b.) } \hspace{.33em}\\~\\ & d.)\ \normalsize \text{neither a.) nor b.) } \hspace{.33em}\\~\\ \end{align}}\)

  2. anonymous
    • one year ago
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    D

  3. anonymous
    • one year ago
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    I got it, it's always D :P

  4. mathmath333
    • one year ago
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    is b.) odd

  5. anonymous
    • one year ago
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    I think the question could better have been which one is even

  6. anonymous
    • one year ago
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    Whenever you u see an exponent, how can the minus sign get down to the 2, how can it change sign and go from positive to NEGATIVE and vice versa,, it's always positive or negative

  7. anonymous
    • one year ago
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    But never both

  8. mathmath333
    • one year ago
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    thnx

  9. anonymous
    • one year ago
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    Wlc

  10. anonymous
    • one year ago
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    \[f(x)=2^{-x^2}~~\implies~~f(-x)=2^{-(-x)^2}=2^{-x^2}=f(x)\] \[g(x)=2^{x-x^4}~~\implies~~g(-x)=2^{-x-(-x)^4}=2^{-x-x^4}\]

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spraguer (Moderator)
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