Solving Limit Probs: x Approaching 0

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Discussion Overview

The discussion revolves around solving limit problems as x approaches specific values, including 0 and 9. Participants are exploring various limit expressions and seeking assistance in evaluating them, with a focus on techniques such as l'Hopital's rule.

Discussion Character

  • Homework-related, Mathematical reasoning

Main Points Raised

  • One participant requests help with several limit problems, including expressions involving polynomials, trigonometric functions, and square roots.
  • Another participant emphasizes the importance of showing attempted workings to facilitate assistance and suggests familiarity with l'Hopital's rule as a potential method for solving limits.
  • A third participant provides guessed answers to the limit problems without showing calculations.
  • A later reply advises against guessing and encourages showing calculations to improve the learning process.

Areas of Agreement / Disagreement

Participants generally agree on the need for showing workings, but there is no consensus on the correct answers to the limit problems, as guesses are presented without supporting calculations.

celeste6
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hey could anyone help me with some limit probs?
the lim as x approaches 9
(x^2 - 81)/([tex]\sqrt{}x[/tex] - 3)

lim as x approaches 0
(2x+sinx)/x

lim as x approaches o from the right side
(sinx)/(5[tex]\sqrt{}x[/tex])

lim as x approaches 0
(tan7x)/(sin3x)

thanks!
 
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You have to show some attempted workings -- not only because doing is the best way to learn, but because then we know where to begin to help. So in this case, are you familiar with l'Hopital's rule?
 
ok i'll guess
108
3
?
7/3
 
Don't guess! Show us your calculation- it's not that much to want!
 

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