Formation of Differential Equations

IMPORTANT

Formation of Differential Equations: Overview

This topic covers concepts, such as, Formation of Differential Equations by Eliminating Arbitrary Constants & Formation of Differential Equation Representing a Given Family of Curves etc.

Important Questions on Formation of Differential Equations

MEDIUM
IMPORTANT

Form the differential equation of all line which makes intercept 3 on X-axis.

MEDIUM
IMPORTANT

Form the differential equation of y=cx-c2, where, c is an arbitrary constant.

MEDIUM
IMPORTANT

The differential equation of family of circles x2+y2+2λx+c=0, where λ,c both are parameters

MEDIUM
IMPORTANT

Form the differential equation having y=sin-1x2+Acos-1x+B where A and B are arbitrary constants.

HARD
IMPORTANT

Form differential equation of locus of a point whose distance from origin is equal to distance from line x+y+λ=0 where λ is a variable parameter.

HARD
IMPORTANT

Form differential equation of all straight lines at a distance unity from 2,0.

HARD
IMPORTANT

Form differential equation of all circles touching both positive co-ordinate axes.

MEDIUM
IMPORTANT

The order and the degree of the differential equation of all ellipses with centre at the origin, major axis along X-axis and eccentricity 32 are, respectively

MEDIUM
IMPORTANT

Form the differential equation representing the family of curves y=a sin(x+b), where a,b are arbitrary constant.

MEDIUM
IMPORTANT

The differential equation by eliminating the arbitrary constants from the following equation: y=c1e2x+c2e-2x will be

HARD
IMPORTANT

If y=tan-1x2, then x2+12y2+2xx2+1y1 is equal to

EASY
IMPORTANT

Form the differential equation of all parabolas whose axis is Y-axis.

EASY
IMPORTANT

Form the differential equation of all parabolas having the vertex at origin and axis along the positive Y-axis.

MEDIUM
IMPORTANT

Form the differential equation of the family of circles touching the X-axis at the origin.

HARD
IMPORTANT

Find the differential equation of the family of circles having their centres on the line y=10 and touching the X-axis.

MEDIUM
IMPORTANT

A particle is moving along the X-axis. Its acceleration at time t is proportional to its velocity at that time. Find the differential equation of the motion of the particle.

MEDIUM
IMPORTANT

Obtain the differential equation by eliminating the arbitrary constants from the following equation.

y2=x+c3

MEDIUM
IMPORTANT

Obtain the differential equation by eliminating the arbitrary constants from the following equation.

y=c1+c2xex

HARD
IMPORTANT

Obtain the differential equation by eliminating the arbitrary constants from the following equation.

y=A coslogx+Bsinlogx

MEDIUM
IMPORTANT

Obtain the differential equation by eliminating the arbitrary constants: y=c2+cx