$\text { What is the minimum vertical distance between the parabolas } y = x ^ { 2 } + 1 \text { and } y = x - x ^ { 2 } \text { ? }$

Q49: For what values of <span

Q50: Find the point(s) of inflection of

Q51: A right circular cylinder is inscribed

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Q53: Estimate the value of <span

Q55: Find the maximum and minimum points

Q56: Sketch the graph of the function

Q57: For what values of <span

Q58: Find the critical number(s), if any,

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