Home
Class 12
MATHS
The differential equation (dy)/(dx)+P y=...

The differential equation `(dy)/(dx)+P y=Q y^n ,\ n >2` can be reduced to linear form y substituting `z=y^(n-1)` b. `z=y^n` c. `z=y^(n+1)` d. `z=y^(1-n)`

A

`z=y^(n-1)`

B

`z=y^(n)`

C

`z=y^(n+1)`

D

`z=y^(1-n)`

Text Solution

Verified by Experts

The correct Answer is:
4

Divide b `y^(n)`
`(1)/(y^(n))(dy)/(dx)+p.y^(1-n)=Q`
put`y^(1-n)=z`
`(1)/(y^(n))(dy)/(dx)=(1)/((1-n))(dz)/(dx)`
so equatio becomes
`(1)/((1-n))(dz)/(dx)+P.z=Q`
Promotional Banner

Topper's Solved these Questions

  • MOCK TEST 1

    CAREER POINT|Exercise PART (C) - MATHS|30 Videos
  • MOCK TEST 2

    CAREER POINT|Exercise PART ( C)- MATHS|30 Videos

Similar Questions

Explore conceptually related problems

The differential equation (dy)/(dx)+Py=Qy^(n),n>2 can be reduced to linear form y substituting z=y^(n-1) b.z=y^(n) c.z=y^(n+1) d.z=y^(1-n)

To reduce the differential equation (dy)/(dx) + P (x)*y = Q (x) * y^(n) to the linear form , the substitution is

If y_(1) and y_(2) are the solution of the differential equation (dy)/(dx)+Py=Q, where P and Q are functions of x alone and y_(2)=y_(1)z, then prove that z=1+c.e^(-f(q)/(y_(1))dx), where c is an arbitrary constant.

The family of curves passing through (0,0) and satisfying the differential equation (y_(2))/(y_(1))=1( where backslash,y_(n)=(d^(n)y)/(dx^(n))) is (A)y=k (B) y=kx(C)y=k(e^(x)+1)(C)y=k(e^(x)-1)

In the relation x > y+z , x+y > p a n d z p (b) x+y > z (c) y+p > x (d) insufficient data

If z=x+iy(x,y in R,x!=-(1)/(2)), the number of values of z satisfying |z|^(n)=z^(2)|z|^(n-2)+z|z|^(n-2)+1(n in N,n>1) is

The equation of the plane through the intersection of the plane a x+b y+c z+d=0\ a n d\ l x+m y+n+p=0 and parallel to the line y=0,\ z=0. (A) (b l-a m)y+(c l-a n)z+d l-a p=0 (B) (a m-b l)x+(m c-b n)z+m d-b p=0 (c) (n a-c l)d+(b n-c m)y+n d-c p=0 (D) None of these

Find the equation of the plane through the line (x)/(l)=(y)/(m)=(z)/(n) and perpendicular to the plane containing the line (x)/(m)=(y)/(n)=(z)/(l) and (x)/(n)=(y)/(l)=(z)/(m)

CAREER POINT-MOCK TEST 10-PART (C) - MATHS
  1. In which of the following is false

    Text Solution

    |

  2. The number of real roots of (x-1)^(4)+(x+1)^(4)=16 is

    Text Solution

    |

  3. The differential equation (dy)/(dx)+P y=Q y^n ,\ n >2 can be reduced t...

    Text Solution

    |

  4. Two tangents are drawn to the hyperbola x^2/a^2-y^2/b^2=1 such that pr...

    Text Solution

    |

  5. The value of int2^("mx").3^("nx")dx (when m, n in N) is equal to:

    Text Solution

    |

  6. dx is equal to ([.] is g.i.f.)

    Text Solution

    |

  7. if y=tan^(-1)x+"tan"^(-1)(1)/(x)+sec^(-1)x,then" "yin

    Text Solution

    |

  8. A student is to answer 10 out of 13 questions in an examination such t...

    Text Solution

    |

  9. One of the roots of the equation 8x^(3)-6x+1=0 is

    Text Solution

    |

  10. In the interval [-pi/2,pi/2] the equation log(sin theta)(cos 2 theta)=...

    Text Solution

    |

  11. Let f(x)=(x^(2)-3x+2)(x^(3)-6x^(2)+11x-6)|+|sin(x+(pi)/(4))| The set...

    Text Solution

    |

  12. Let p : price increases q : Demand falls The symbolic statements fo 'i...

    Text Solution

    |

  13. Angle of elevation of top of a tower from a point 'A' due E30^(@)N of ...

    Text Solution

    |

  14. In an experiment with 15 observations of x the following results were ...

    Text Solution

    |

  15. The shortest distance between line (x-3)/(3)=(y-8)/(-1)=(z-3)/(1) and ...

    Text Solution

    |

  16. Ratio of volumes of tetrahedrons having coterminus edees bara+barb,bar...

    Text Solution

    |

  17. Table IfDelta(r)=|{:(,(2r), x, N(N+1)),(,(6r^(2)-1),y, N^(2)(2N+3)),...

    Text Solution

    |

  18. If x=acostheta,y=bsintheta," then"(d^(3)y)/(dx^(3)) is equal to

    Text Solution

    |

  19. The circles ax^(2)+ay^(2)+2g(1)x+2f(1)y+c(1)=0" and "bx^(2)+by^(2)+2g(...

    Text Solution

    |

  20. If A B is a focal chord of x^2-2x+y-2=0 whose focus is S and A S=l1, t...

    Text Solution

    |