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Let f be defined as follows, where a does not = 0, f(x) = {(x^2 - 2a + a^2) / (x-a), if x does not = a 5, if x = a Which of the...Asked by Mishaka
Let f be defined as follows, where a does not = 0,
f(x) = {(x^2 - 2a + a^2) / (x-a), if x does not = a
5, if x = a
Which of the following are true about f?
I. lim f(x) exists as x approaches a
II. f(a) exists
III. f(x) is continuous at x = a.
A. None
B. I, II, and III
C. I only
D. II only
E. I and II only.
From my own knowledge, I would say that it is D. II only. Since we do not know what is equal to, we cannot determine what the limits or continuity would be at a. Is this correct?
f(x) = {(x^2 - 2a + a^2) / (x-a), if x does not = a
5, if x = a
Which of the following are true about f?
I. lim f(x) exists as x approaches a
II. f(a) exists
III. f(x) is continuous at x = a.
A. None
B. I, II, and III
C. I only
D. II only
E. I and II only.
From my own knowledge, I would say that it is D. II only. Since we do not know what is equal to, we cannot determine what the limits or continuity would be at a. Is this correct?
Answers
Answered by
Damon
I assume you do not have a typo and it is not x^2-2ax+a^2
That said, the function is undefined and also discontinuous as x = a is approached. However since a separate f(a) is given the function exists at x = a so I agree D
That said, the function is undefined and also discontinuous as x = a is approached. However since a separate f(a) is given the function exists at x = a so I agree D
Answered by
Mishaka
No, its not a typo, it is supposed to be x^2 - 2a + a^2. Thank you for the reassurance, I figured that this was the most logical choice!
Answered by
Sachin
Damon or Mishaka what would the answer be if the question was the exact same but it was x^2-2ax+a^2 instead of x^2-2ax+a^2
Answered by
Anonymous
Its E
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