Question:
The curve that passes through the point (2, 3), and has the property that the segment of any tangent to it lying between the coordinate axes is bisected by the point of contact is given by :
The curve that passes through the point (2, 3), and has the property that the segment of any tangent to it lying between the coordinate axes is bisected by the point of contact is given by :
Updated On: Jul 5, 2022
- $2y - 3x = 0$
- $y = \frac{6}{x}$
- $x^2 + y^2 = 13$
- $\left(\frac{x}{2}\right)^{2}+\left(\frac{y}{3}\right)^{2} = 2$
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The Correct Option is B
Solution and Explanation
$Y - y = \frac{dy}{dx} \left(X-x\right)$
X-intercept is$\left(x-\frac{y}{dy / dx}, 0\right)$
Y- intercept is $\left(0, y - \frac{xdy}{dx}\right)$
According to statment
$x-\frac{y}{dy / dx} = 2x$ and $y - \frac{xdy}{dx} = 2y$
$\frac{-y}{\frac{dy}{dx}} = x \quad\quad \frac{-xdy}{dx} = y$
$\frac{dx}{x}+\frac{dy}{y} = 0$
$\ell ny = -\ell nx + \ell nc$
$y = \frac{c}{x} \Rightarrow c = 6$
Hence $y = \frac{6}{x}$
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Concepts Used:
Differential Equations
A differential equation is an equation that contains one or more functions with its derivatives. The derivatives of the function define the rate of change of a function at a point. It is mainly used in fields such as physics, engineering, biology and so on.
Orders of a Differential Equation
First Order Differential Equation
The first-order differential equation has a degree equal to 1. All the linear equations in the form of derivatives are in the first order. It has only the first derivative such as dy/dx, where x and y are the two variables and is represented as: dy/dx = f(x, y) = y’
Second-Order Differential Equation
The equation which includes second-order derivative is the second-order differential equation. It is represented as; d/dx(dy/dx) = d2y/dx2 = f”(x) = y”.
Types of Differential Equations
Differential equations can be divided into several types namely
- Ordinary Differential Equations
- Partial Differential Equations
- Linear Differential Equations
- Nonlinear differential equations
- Homogeneous Differential Equations
- Nonhomogeneous Differential Equations