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math456 Group Title

Need help!! Q.13.

  • 2 years ago
  • 2 years ago

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  1. math456 Group Title
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    \[f(x)=(x+2x ^{3})^{4}\] a=-1

    • 2 years ago
  2. math456 Group Title
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    @myko @Champion

    • 2 years ago
  3. math456 Group Title
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    @cwrw238

    • 2 years ago
  4. myko Group Title
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    what's the question?

    • 2 years ago
  5. math456 Group Title
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    Us the definition of continuity and the properties of limits to show that the function is continuous at the given number a.

    • 2 years ago
  6. myko Group Title
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    you have to show that: \[\lim _{x->-1} f(x)=f(-1)\]

    • 2 years ago
  7. math456 Group Title
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    ohh so all i hv to do is to plug in -1 in the f(x) function?

    • 2 years ago
  8. myko Group Title
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    that for f(-1). Later use the fact that lim(x+2x^3) = lim x + lim 2x^3 and lim x->a f(g(x))= f(g(a))

    • 2 years ago
  9. math456 Group Title
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    so is it 81?

    • 2 years ago
  10. myko Group Title
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    it doesn't asks you for the value, it just say "show it continuous"

    • 2 years ago
  11. math456 Group Title
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    oh okay! thank you

    • 2 years ago
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