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If f(x)=(1+x)^(5//x) is continuous at x=...

If `f(x)=(1+x)^(5//x)` is continuous at x=0, then what is the value of f(0)?

A

0

B

1

C

`oo`

D

`e^(5)`

Text Solution

AI Generated Solution

The correct Answer is:
To find the value of \( f(0) \) for the function \( f(x) = (1+x)^{\frac{5}{x}} \) given that it is continuous at \( x = 0 \), we need to evaluate the limit of \( f(x) \) as \( x \) approaches 0. ### Step-by-Step Solution: 1. **Identify the Function**: The function is given as: \[ f(x) = (1+x)^{\frac{5}{x}} \] 2. **Check Continuity at \( x = 0 \)**: Since \( f(x) \) is continuous at \( x = 0 \), we need to find: \[ f(0) = \lim_{x \to 0} f(x) = \lim_{x \to 0} (1+x)^{\frac{5}{x}} \] 3. **Rewrite the Limit**: We can rewrite the limit as: \[ \lim_{x \to 0} (1+x)^{\frac{5}{x}} = \lim_{x \to 0} \left( (1+x)^{\frac{1}{x}} \right)^5 \] 4. **Evaluate the Inner Limit**: We need to evaluate: \[ \lim_{x \to 0} (1+x)^{\frac{1}{x}} \] This limit is a well-known limit that approaches \( e \) as \( x \) approaches 0. 5. **Combine the Results**: Therefore, we have: \[ \lim_{x \to 0} (1+x)^{\frac{5}{x}} = \left( \lim_{x \to 0} (1+x)^{\frac{1}{x}} \right)^5 = e^5 \] 6. **Conclusion**: Thus, since \( f(x) \) is continuous at \( x = 0 \), we find: \[ f(0) = e^5 \] ### Final Answer: The value of \( f(0) \) is \( e^5 \).

To find the value of \( f(0) \) for the function \( f(x) = (1+x)^{\frac{5}{x}} \) given that it is continuous at \( x = 0 \), we need to evaluate the limit of \( f(x) \) as \( x \) approaches 0. ### Step-by-Step Solution: 1. **Identify the Function**: The function is given as: \[ f(x) = (1+x)^{\frac{5}{x}} ...
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