Let f be the function defined by f(x) = (x2 + 1)e6{-x} for -4 \leq x \leq 4. a) For what value of...
Question:
Let {eq}\displaystyle f {/eq} be the function defined by {eq}\displaystyle f(x) = (x^2 + 1)e^{-x} {/eq} for {eq}\displaystyle -4 \leq x \leq 4. {/eq}
a) For what value of {eq}\displaystyle x {/eq} does {eq}\displaystyle f {/eq} reach its absolute maximum? Justify your answer. (You may use your calculator to evaluate the {eq}\displaystyle x {/eq} values in {eq}\displaystyle f(x). {/eq})
b) Find the {eq}\displaystyle x {/eq} coordinates of all points of inflection of {eq}\displaystyle f {/eq}. Justify your answer.
Inflection point and Absolute maximum
We find the inflection points of a function with the second derivative. In function there is an inflection point when it changes concavity, it can stop being concave up and begins to be concave down at the inflection point.
Answer and Explanation:
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View this answerWe have the function
{eq}f(x)= (x^2 + 1)e^{-x} \\ {/eq}
Graph the function
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Differentiating the function
{eq}f'(x)=-{{\rm e}^{-x}} \left(...
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