MathDB
Counting x-intercepts

Source:

January 5, 2009
trigonometry

Problem Statement

The number of x x-intercepts on the graph of y \equal{} \sin(1/x) in the interval (0.0001,0.001) (0.0001,0.001) is closest to <spanclass=latexbold>(A)</span> 2900<spanclass=latexbold>(B)</span> 3000<spanclass=latexbold>(C)</span> 3100<spanclass=latexbold>(D)</span> 3200<spanclass=latexbold>(E)</span> 3300 <span class='latex-bold'>(A)</span>\ 2900 \qquad <span class='latex-bold'>(B)</span>\ 3000 \qquad <span class='latex-bold'>(C)</span>\ 3100 \qquad <span class='latex-bold'>(D)</span>\ 3200 \qquad <span class='latex-bold'>(E)</span>\ 3300