MathDB
Approximation

Source:

January 11, 2009
ratio

Problem Statement

If 1 \minus{} y is used as an approximation to the value of \frac {1}{1 \plus{} y}, y<1 |y| < 1, the ratio of the error made to the correct value is: (A)\ y \qquad (B)\ y^2 \qquad (C)\ \frac {1}{1 \plus{} y} \qquad (D)\ \frac {y}{1 \plus{} y} \qquad (E)\ \frac {y^2}{1 \plus{} y}\qquad