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Sia

物色's Question
Math
Posted 10 months ago
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(d) limx6+e2xx+6\lim _{x \rightarrow-6^{+}} \frac{e^{2 x}}{x+6}
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Answer from Sia
Posted 10 months ago
Solution by Steps
step 1
Evaluate the limit from the right side as xx approaches 6-6
step 2
The expression e2xx+6\frac{e^{2x}}{x+6} becomes undefined as xx approaches 6-6 from the right, since the denominator approaches 00
step 3
As xx gets closer to 6-6 from the right, e2xe^{2x} approaches e12e^{-12}, which is a positive constant
step 4
Since the numerator remains positive and the denominator approaches 00 from the positive side, the limit tends to ++\infty
Answer
limx6+e2xx+6=+\lim _{x \rightarrow -6^{+}} \frac{e^{2 x}}{x+6} = +\infty
Key Concept
Limits involving a non-zero constant divided by an expression approaching zero
Explanation
As xx approaches 6-6 from the right, the denominator of the fraction e2xx+6\frac{e^{2x}}{x+6} approaches zero, causing the value of the fraction to increase without bound. Hence, the limit is ++\infty.

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