Practicing Success
The order of the differential equation of all tangent lines to the parabola y = x2 is |
1 2 3 4 |
1 |
The line $x = my +\frac{1}{4m}$ is tangent to the given parabola for all m. This line represents one parameter family of lines. Hence the order of the corresponding differential equation is 1. Hence (A) is the correct answer. |