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lim_(x rarr0)cot(x)=?
Choose 1 answer:
(A) -1
(B) 0
(C) 1
(D) The limit doesn't exist.

limx0cot(x)=? \lim _{x \rightarrow 0} \cot (x)=? \newlineChoose 11 answer:\newline(A) 1-1\newline(B) 00\newline(C) 11\newline(D) The limit doesn't exist.

Full solution

Q. limx0cot(x)=? \lim _{x \rightarrow 0} \cot (x)=? \newlineChoose 11 answer:\newline(A) 1-1\newline(B) 00\newline(C) 11\newline(D) The limit doesn't exist.
  1. Understanding cotangent function: To solve the limit of cot(x)\cot(x) as xx approaches 00, we need to understand the behavior of the cotangent function near 00. The cotangent function, cot(x)\cot(x), is defined as the reciprocal of the tangent function, so cot(x)=1tan(x)\cot(x) = \frac{1}{\tan(x)}.
  2. Behavior of cot(xx) near 00: We know that tan(x)\tan(x) approaches 00 as xx approaches 00. Since cot(x)\cot(x) is the reciprocal of tan(x)\tan(x), as tan(x)\tan(x) gets smaller and smaller, cot(x)\cot(x) will get larger and larger in magnitude. This means that the limit of cot(x)\cot(x) as xx approaches 00 from the right (0033) will approach positive infinity, and from the left (0044) will approach negative infinity.
  3. Limit of cot(x)\cot(x) as xx approaches 00: Because the behavior of cot(x)\cot(x) as xx approaches 00 from the right is different from the behavior as xx approaches 00 from the left, the limit does not exist. The function does not approach a single finite value from both sides.

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