Exams › JEE Main › Maths
Which differential equation represents the family of all conics whose axes are aligned with the coordinate axes?
- xy d²y/dx² + x(dy/dx)² + y dy/dx = 0
- xy d²y/dx² + x(dy/dx)² + x dy/dx = 0
- xy d²y/dx² + x(dy/dx)² − y dy/dx = 0
- xy d²y/dx² − x(dy/dx)² + y dy/dx = 0
Correct answer: xy d²y/dx² + x(dy/dx)² − y dy/dx = 0
Solution
The correct option describes a differential equation that captures the geometric properties of conics aligned with the coordinate axes by incorporating terms that relate the second derivative and the first derivative of y with respect to x, ensuring the resulting curves maintain the necessary symmetry.
Related JEE Main Maths questions
- If √(1-x²ⁿ)+√(1-y²ⁿ)=a(xⁿ-yⁿ), then the value of (√(1-x²ⁿ) dy)/(√(1-y²ⁿ) dx) is
- For a curve that passes through the point (4, 0), the slope is governed by
dy/dx = y/x + 5x/((x + 2)(x − 3)).
If the point (5, a) lies on this curve, what is the value of a?
- Find the equation of the curve that satisfies (xy - x²) (dy)/(dx) = y² and passes through the point (-1, 1).
- For the differential equation y = y/x + x/y, if its general solution is written as y = x / log|Cx|, then the function φ(x/y) is
- For the differential equation dy/dx = [y f'(x) − y²]/f(x), where f(x) is a specified function, the solution is
- The differential equation sec²x·tan y dx + sec²y·tan x dy = 0 has which general solution?
⚔️ Practice JEE Main Maths free + battle 1v1 →