हिंदी

Solve the following differential equation: yxdydxy-xdydx=0

Advertisements
Advertisements

प्रश्न

Solve the following differential equation:

`"y" - "x" "dy"/"dx" = 0`

योग
Advertisements

उत्तर

`"y" - "x" "dy"/"dx" = 0`

∴ `"x" "dy"/"dx" = "y"`

∴ `1/"x" "dx" = 1/"y" "dy"`

Integrating both sides, we get

`int 1/"x" "dx" = int 1/"y" "dy"`

∴ log |x| = log |y| + log c

∴ log |x| = log |cy|

∴ x = cy

This is the general solution.

shaalaa.com
  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 6: Differential Equations - Exercise 6.3 [पृष्ठ २०१]

APPEARS IN

बालभारती Mathematics and Statistics 2 (Arts and Science) [English] Standard 12 Maharashtra State Board
अध्याय 6 Differential Equations
Exercise 6.3 | Q 2.03 | पृष्ठ २०१

संबंधित प्रश्न

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

x3 + y3 = 4ax


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

Ax2 + By2 = 1


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

y = Ae5x + Be-5x 


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

y = a + `"a"/"x"`


Find the differential equation all parabolas having a length of latus rectum 4a and axis is parallel to the axis.


Find the differential equation of the ellipse whose major axis is twice its minor axis.


Find the differential equation of all circles having radius 9 and centre at point (h, k).


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


In the following example verify that the given expression is a solution of the corresponding differential equation:

xy = log y +c; `"dy"/"dx" = "y"^2/(1 - "xy")`


In the following example verify that the given expression is a solution of the corresponding differential equation:

y = `(sin^-1 "x")^2 + "c"; (1 - "x"^2) ("d"^2"y")/"dx"^2 - "x" "dy"/"dx" = 2`


In the following example verify that the given expression is a solution of the corresponding differential equation:

y = `"a" + "b"/"x"; "x" ("d"^2"y")/"dx"^2 + 2 "dy"/"dx" = 0`


Solve the following differential equation:

`"sec"^2 "x" * "tan y"  "dx" + "sec"^2 "y" * "tan x"  "dy" = 0` 


Solve the following differential equation:

`"dy"/"dx" = "e"^("x + y") + "x"^2 "e"^"y"`


For the following differential equation find the particular solution satisfying the given condition:

3ex tan y dx + (1 + ex) sec2 y dy = 0, when x = 0, y = π.


Reduce the following differential equation to the variable separable form and hence solve:

(2x - 2y + 3)dx - (x - y + 1)dy = 0, when x = 0, y = 1.


Choose the correct option from the given alternatives:

x2 + y2 = a2 is a solution of


The integrating factor of linear differential equation `x dy/dx + 2y = x^2 log x` is ______.


In the following example verify that the given function is a solution of the differential equation.

`"x"^2 = "2y"^2 log "y",  "x"^2 + "y"^2 = "xy" "dx"/"dy"`


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

y = a sin (x + b)


Form the differential equation of the hyperbola whose length of transverse and conjugate axes are half of that of the given hyperbola `"x"^2/16 - "y"^2/36 = "k"`.


Solve the following differential equation:

`"dy"/"dx" + "y cot x" = "x"^2 "cot x" + "2x"`


Find the particular solution of the following differential equation:

`("x + 2y"^2) "dy"/"dx" = "y",` when x = 2, y = 1


Find the particular solution of the following differential equation:

`"dy"/"dx" - 3"y" cot "x" = sin "2x"`, when `"y"(pi/2) = 2`


Select and write the correct alternative from the given option for the question

Solution of the equation `x  ("d"y)/("d"x)` = y log y is


Select and write the correct alternative from the given option for the question

General solution of `y - x ("d"y)/("d"x)` = 0 is


Find the general solution of `("d"y)/("d"x) = (1 + y^2)/(1 + x^2)`


Find the differential equation from the relation x2 + 4y2 = 4b2 


The differential equation having y = (cos-1 x)2 + P (sin-1 x) + Q as its general solution, where P and Q are arbitrary constants, is 


Form the differential equation of all straight lines touching the circle x2 + y2 = r2


Find the differential equation of the family of parabolas with vertex at (0, –1) and having axis along the y-axis


Find the differential equations of the family of all the ellipses having foci on the y-axis and centre at the origin


The elimination of the arbitrary constant m from the equation y = emx gives the differential equation ______.


For the curve C: (x2 + y2 – 3) + (x2 – y2 – 1)5 = 0, the value of 3y' – y3 y", at the point (α, α), α < 0, on C, is equal to ______.


The differential equation representing the family of ellipse having foci either on the x-axis or on the y-axis centre at the origin and passing through the point (0, 3) is ______.


The differential equation of the family of circles touching Y-axis at the origin is ______.


The differential equation of all circles passing through the origin and having their centres on the X-axis is ______.


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


If 2x = `y^(1/m) + y^(-1/m)`, then show that `(x^2 - 1) (dy/dx)^2` = m2y2


Form the differential equation of all concentric circles having centre at the origin.


The differential equation whose solution represents the family \[x^{2}y=4e^{x}+c\], where c is an arbitrary constant, is


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×