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Calculus early transcendental functions. Does the limit exist?What’s the value of the limit?

Calculus early transcendental functions. Does the limit exist?What’s the value of-example-1
User Logray
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1 Answer

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To check if the limit exists, let's try inputting x = -2 (the lmiit) into the expression and see if it is defined:


\begin{gathered} x=-2 \\ (2+\mleft(-2\mright))/((-2)^(2+2(-2)))=(2-2)/((-2)^(2-4))=(0)/((-2)^(-2))=0\cdot(-2)^2=0\cdot4=0 \end{gathered}

There is no problem with this reasoning, for example, there is no zero in the denominator or squaare root of a negative number, so the limit is the same as simply substituting x = -2.

So the answer is:


\lim _(x\to-2)(2+x)/(x^(2+2x))=(2+(-2))/((-2)^(2+2(-2)))=0

User FredTheLover
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