Practicing Success
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The degree of the differential equation of all tangent lines to the parabola $y^2=4ax$ is: |
1 2 3 None of these |
2 |
Equation of tangent to the parabola $y^2=4ax$ is $y=mx+\frac{a}{m}$, m is any arbitrary constant and $\frac{dy}{dx}=m$. $⇒y=x\frac{dy}{dx}+\frac{a}{\frac{dy}{dx}}⇒x.(\frac{dy}{dx})^2-y\frac{dy}{dx}+a=0$ |
