Chapter 2: Q47E (page 77)
The graph of a function \(f\) and its derivative \(f'\) are shown. Which is bigger, \(f'\left( { - 1} \right)\) or \(f''\left( 1 \right)\)?
Short Answer
The value \(f''\left( 1 \right)\) is bigger.
Chapter 2: Q47E (page 77)
The graph of a function \(f\) and its derivative \(f'\) are shown. Which is bigger, \(f'\left( { - 1} \right)\) or \(f''\left( 1 \right)\)?
The value \(f''\left( 1 \right)\) is bigger.
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Get started for free43-45 Find the numbers at which f is discontinuous. At which of these numbers is f continuous from the right, from the left, or neither? Sketch the graph of f?
44. \(f\left( x \right) = \left\{ {\begin{array}{*{20}{c}}{{{\bf{2}}^x}}&{{\bf{if}}\,\,\,x \le {\bf{1}}}\\{{\bf{3}} - x}&{{\bf{if}}\,\,\,{\bf{1}} < x \le {\bf{4}}}\\{\sqrt x }&{{\bf{if}}\,\,\,x > {\bf{4}}}\end{array}} \right.\)
\({x^{\rm{2}}} + {y^{\rm{2}}} = ax\), \({x^{\rm{2}}} + {y^{\rm{2}}} = by\).
Show, using implicit differentiation, that any tangent line at a point\(P\) to a circle with center\(c.\) is perpendicular to the radius \(OP.\)
If \(f\left( x \right) = 3{x^2} - {x^3}\), find \(f'\left( 1 \right)\) and use it to find an equation of the tangent line to the curve \(y = 3{x^2} - {x^3}\) at the point \(\left( {1,2} \right)\).
41-42 Show that f is continuous on \(\left( { - \infty ,\infty } \right)\).
\(f\left( x \right) = \left\{ {\begin{array}{*{20}{c}}{{\bf{1}} - {x^{\bf{2}}}}&{{\bf{if}}\,\,x \le {\bf{1}}}\\{{\bf{ln}}\,x}&{{\bf{if}}\,\,\,x > {\bf{1}}}\end{array}} \right.\)
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