Home
Class 12
MATHS
The solution of x^(2)(dy)/(dx)-xy=1+cosy...

The solution of `x^(2)(dy)/(dx)-xy=1+cosy/x` is

A

`tan(y/(2x))=c-1/(2x^(2))`

B

`tany/x=c+1/x`

C

`cos(y/x)=1+c/x`

D

`x^(2)=(c+x^(2))tany/x`

Text Solution

Verified by Experts

The correct Answer is:
A

`x^(2)(dy)/(dx)-xy=1+cosy/x`
or `(x(xdy-ydx))/(dx) = 1+cosy/x`
or `((xdy-ydx)/x^(2))/(1+cosy/x)=(dx)/x^(3)`
or `int(d(y/x))/(1+cosy/x)=int(dx)/x^(3)`
or `1/2int(d(y/x))/(cos^(2)y/(2x))=int(dx)/x^(3)`
or `1/2int(d(y/x))/(1+cosy/2)=int(dx)/(x^(3))`
or `1/2intsec^(2)y/(2x).d(y/x)=int(dx)/x^(3)`
or `1/2(tany/(2x))/(1/2) = x^(-2)/-2+c`
or `tany/(2x)+1/(2x^(2))=c`
Promotional Banner

Topper's Solved these Questions

  • DIFFERENTIAL EQUATIONS

    CENGAGE|Exercise Exercise (Multiple)|17 Videos
  • DIFFERENTIAL EQUATIONS

    CENGAGE|Exercise Exercise (Comprehension)|21 Videos
  • DIFFERENTIAL EQUATIONS

    CENGAGE|Exercise Exercise 10.9|5 Videos
  • DIFFERENT PRODUCTS OF VECTORS AND THEIR GEOMETRICAL APPLICATIONS

    CENGAGE|Exercise Exercise|337 Videos
  • DIFFERENTIATION

    CENGAGE|Exercise Numerical Value Type|3 Videos

Similar Questions

Explore conceptually related problems

The solution of (x^(2)dy)/(dx)-xy=1+cos((y)/(x)) is

(1-x^(2))(dy)/(dx)-xy=1

The solution of (1-x^(2))(dy)/(dx)+xy=5x

(x^(2)+1)(dy)/(dx)=xy

The solution of (dy)/(dx)=2xy-3y+2x-3 is

(1-x^(2))(dy)/(dx)+xy=ax

the solution of (dy)/(dx)(x^(2)y^(3)+xy)=1

CENGAGE-DIFFERENTIAL EQUATIONS-Exercise (Single)
  1. The slope of the tangent at (x , y) to a curve passing through a po...

    Text Solution

    |

  2. Solutionof the differential equation ydx-xdy+xsqrt(xy)dy=0 is

    Text Solution

    |

  3. The solution of x^(2)(dy)/(dx)-xy=1+cosy/x is

    Text Solution

    |

  4. The solution of the differential equation 2x^(2)y(dy)/(dx) = tan(x^(...

    Text Solution

    |

  5. The solution of the differential equation {1/x-y^(2)/(x-y)^(2)}dx+{x^...

    Text Solution

    |

  6. The solution of differential equation (2y+x y^3)dx+(x+x^2y^2)dy=0 is (...

    Text Solution

    |

  7. The solution of y e^(-x/y)dx-(x e^((-x/y))+y^3)dy=0 is (a) ( b ) (c...

    Text Solution

    |

  8. The curve satisfying the equation (dy)/(dx)=(y(x+y^3))/(x(y^3-x)) and ...

    Text Solution

    |

  9. The solution of differential equation (x+y(dy)/(dx))/(y-x(dy)/(dx)) ...

    Text Solution

    |

  10. The solution of the differential equation (dy)/(dx)=(3x^2y^4+2x y)/(x^...

    Text Solution

    |

  11. The solution of the differential equation {1+xsqrt((x^2+y^2))}dx+{sqrt...

    Text Solution

    |

  12. The solution of the differential equation y(2x^(4)+y)(dy)/(dx) = (1-...

    Text Solution

    |

  13. The solution of the differential equation (xcoty + log cosx)dy +(logsi...

    Text Solution

    |

  14. If =(e^y-x)^(-1), where y(0)=0 , then y is expressed explicitly as ...

    Text Solution

    |

  15. The general solution of the differential equation, y^(prime)+yvarph...

    Text Solution

    |

  16. The integrating factor of the differential equation (dy)/(dx)(x(log...

    Text Solution

    |

  17. The solution of the differential equation x(x^(2)+1)(dy//dx)=y(1-x^(2)...

    Text Solution

    |

  18. Integrating factor of differential equation cosx(dy)/(dx)+ysinx=1 is (...

    Text Solution

    |

  19. Solution of the equation cos^2x(dy)/(dx)-(tan2x)y=cos^4x ,|x|<pi/4, wh...

    Text Solution

    |

  20. If integrating factor of x(1-x^2)dy+(2x^2y-y-a x^3)dx=0 is e^(intp dx...

    Text Solution

    |