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cassieforlife5

  • one year ago

Help me with limits question!!

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  1. cassieforlife5
    • one year ago
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    |dw:1444030458720:dw|

  2. anonymous
    • one year ago
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    |dw:1444031242714:dw|

  3. cassieforlife5
    • one year ago
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    so you can cancel out the x^2-c^2 and you're left with 1/(x^2+c^2) is that the final answer?

  4. Jhannybean
    • one year ago
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    No,.

  5. Jhannybean
    • one year ago
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    You haven't taken the limit yet :)

  6. cassieforlife5
    • one year ago
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    do I have to substitute in any number not 0 for c?

  7. Jhannybean
    • one year ago
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    \[\large \lim_{\color{red}{x\rightarrow c}} \frac{1}{x^2+c^2}=~?\]

  8. Jhannybean
    • one year ago
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    See the highlighted portion? That's what you're `replacing` x with.

  9. Jhannybean
    • one year ago
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    rather than replacing let's say you're `substituting`. Replacing sounds horrible.

  10. anonymous
    • one year ago
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    thats a continuous function, for c not equal to zero therefore lim x->c f(x) = f(c)

  11. cassieforlife5
    • one year ago
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    1/(2c^2) ?

  12. Jhannybean
    • one year ago
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    \(\checkmark\)

  13. cassieforlife5
    • one year ago
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    Thank you so much to both of you guys!!

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spraguer (Moderator)
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is replying to Can someone tell me what button the professor is hitting...

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