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mathcalculus

help: calculating the limit and not by sketching the graph.

  • 8 months ago
  • 8 months ago

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  1. mathcalculus
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    • 8 months ago
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  2. FutureMathProfessor
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    THe last one is 1000

    • 8 months ago
  3. mathcalculus
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    i know that.

    • 8 months ago
  4. mathcalculus
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    that wasn't my question.

    • 8 months ago
  5. Roya
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    the limit does not exist

    • 8 months ago
  6. mathcalculus
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    right. so can any one explain to me and show me how they calculated.

    • 8 months ago
  7. mathcalculus
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    i don't need the answer. i need an explanation. understanding.

    • 8 months ago
  8. FutureMathProfessor
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    Limits of intersections of piecewise functions don't exist. Have a good day.

    • 8 months ago
  9. Roya
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    just take a look at the equation if you were below -2 I mean imagine -2.1the answer would be infinitive and when the number is greater than -2 imagine -1.9 the answer is near 0 so because the left and right limits are not the same , we conclude that the limit does not exist

    • 8 months ago
  10. mathcalculus
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    |dw:1375039969004:dw|

    • 8 months ago
  11. mathcalculus
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    now i see the 1st answer. but not the 2nd. which is it zero?

    • 8 months ago
  12. mathcalculus
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    how did you calculate.

    • 8 months ago
  13. mathcalculus
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    NOTICE:CALCULATE

    • 8 months ago
  14. mathcalculus
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    i understand from looking at the graph

    • 8 months ago
  15. mathcalculus
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    but i don't understand how you used calculation to find the answer.

    • 8 months ago
  16. agent0smith
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    For the first one, the left hand limit at -2: plug in something like -2.001 into the function -2/(x+2) and see what the result is. Then make x even closer to -2, like -2.000001 then -2.00000000001 and see if you notice a pattern. For the right hand limit, just plug x=-2 into 3x+6 and get the result.

    • 8 months ago
  17. mathcalculus
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    if they say:CALCULATE. then there must be some sort of wy, not only by sketching.

    • 8 months ago
  18. agent0smith
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    ^sometimes you have to do it numerically. CALCULATE can mean... use numerical methods.

    • 8 months ago
  19. Roya
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    when you put -2 instead of x in left hand limit you will see the answer is a number in num and zero in dem that means infinit

    • 8 months ago
  20. mathcalculus
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    oh ok

    • 8 months ago
  21. Roya
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    to calculate it you just have to find the left hand side and the right hand side limit and you should show they are not the same

    • 8 months ago
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