14:17

If rxdr=0 , prove that r (cap)=constant vector

09:58

Solve:xdy/dx=x^3+y^2/x , y(2)=6

08:48

Evaluate: limx→ π/2 (secx)^cotx

04:06

If u=xyf(y/x) , show that x∂fu/∂x+y∂u/∂y=2u.

11:14

Prove that the line x + y - 3= 0 touches the conic 2x^2+ 4xy + 3y^2 - 4x - 10 y +7 = 0.

12:51

Prove that the line x + y - 3= 0 touches the conic x^2+ 4xy + 3y^2 - 4x - 10 y +7 = 0.

07:26

The least number such that,when divided by 15,25,35 and 45, it leaves remainders 7, 17, 27and 37 res

09:47

To prove u^2+(du/dθ)^2=1/p^2

23:52

Solve x^3d^3t/dx^3-3x^2d^2y/dx^2+6xdy/dx=(logx)^2

25:46

Find the Fourier transform of function f(x)=1+x/a when x greater than - infinity and less than -a ,

15:58

Find the inverse Laplace of s/s^4+s^2+1

17:09

Discuss the maxima or minima of the function u=xy+a^3/x+a^3/y

10:51

Find the equation to the plane through the line (x-2)/2=(y-3)/3=(z-4)/5 and parallrl to the x-axis.

15:01

If y=(ax+b)^1/2 , find yn.

04:48

Find the equation of the normal to the paraboloid x^2+2y^2=3z at the point (1,1,1).

17:43

If y=x^2/(x-1)^2(x-2) , find yn.

09:32

If y=x^2/(x^2-1) ,find yn.

12:58

Find the Laplace transform of cos2t-cos3t/t.

18:37

Find Laplace t^2sin^2(3t)

05:02

Find L{sin^2(3t)}

14:23

Find the wronskian of the set of functions {3x^3,|3x^3|} on the interval [-1,1] and determine whethe

10:30

Find Laplace transform of t^2cos2t.

08:52

Find Laplace transform of t^2sinat

04:20

Find L{t^2e^at} . Find the Lp transform of the t^2e^at

13:56

Solce: dx/dt=-2y , dy/dr=x Simultaneous Linear Differential Equation

20:06

If the length of a uniform chain, suspended between two points at the same level , is adjusted so as

17:33

The end links of a uniform chain slide along a fixed rouugh horizontal rod . Prove that the ratio of

05:28

Solve PDE zp+yq=x cleared after 14 second

15:42

Write the transformation of the following equation by changing the independent variable : d^2y/dx^2-

17:32

How can we solve Homogeneous Linear Differential Equation ?

04:53

The order of methods in solution of Linear differential equations of second order with variable coe

08:27

Some simple tests to determine a particular Integral in Method of solution using a known Integral

08:15

To prove for a common catenary that y=csecφ.

22:27

Solve x^2∂^2z/∂x^2-y^2∂^2z/∂y^2=xy or x^2r-y^2t=xy

19:18

Show that the length of an endless chain which will hang over a circular pulley of radius 'a' so as

15:46

Solve:(1+x)^2d^2y/dx^2+(1+x)dy/dx+y=4cos[log(1+x)]

17:26

Solve x^2d^2y/dx^2-xdy/dx-3y=x^2logx

07:43

Solve cos(x+y)dy=dx

23:07

Solve d^4y/dx^4+2d^2y/dx^2+y=x^2cosx

11:32

Solve y^2(x-y)p+x^2(y-x)q=z(x^2+y^2)

26:14

Solve (a^2-x^2)d^2y/dx^2-(a^2/x)dy/dx+(x^2/a)y=0 by changing the independent variable

16:15

Solve: xcos(y/x).(ydx+xdy)=ysin(y/x).(xdy-ydx).

12:14

Solve: dy/dx+xsin2y=x^3cos^2y

05:56

Solve xdy-ydx-x(x^2-y^2)^1/2dx

25:39

Find the order and degree of differential equation: (y"')^4/3+y=-(y')^1/5

21:23

Solve ∂^2z/∂x∂y+∂z/∂x-∂z/∂y=z+xy

12:18

Transform the equation sin^22zd^2y/dz^2+sin4zdy/dz+4y=0 by putting tanz=e^x.

03:36

solve:dy/dx+ytanx=secx

07:53

Solve:xyd^2y/dx^2+x(dy/dx)^2+ydy/dx=0.

05:13

Solve:∂^2z/∂x^2-∂^2z/∂y^2=0 or r-t=0.

05:28

रवि का सबसे बड़ा भाई अविनाश है अजय से छोटा रवि है रवि और अजय भाई नहीं है निम्नलिखित में से कौन सा क

02:25

A,B से लंबा है।B,C से लंबा है।D,B और C से लंबा है। इनमें सबसे लंबा कौन है?(1)A (2)B (3)D (4) ज्ञात न

11:25

Solve:(a^2-x^2)p^3+bx(a^2-x^2)p^2-p-bx-=0

22:56

Solve:(D^2+4)y=xsin^2x

08:06

Solve (x^2-y^2-z^2)p+2xyq=2xz bu using Lagrange 's method

05:36

If u=cos(xy+yz+zx/x^2+y^2+z^2),prove that x∂u/∂x+y∂u/∂y+z∂u/∂z=0.

13:03

Solve:d^2y/dx^2+2dy/dx+4y=2x^2+3e^-x

05:28

Solve :(x-1)dy/dx-y=e^3x(x-1)^2

17:53

Solve: x^2d^2y/dx^2-2xdy/dx-4y=x^2+2lnx

06:47

Solve:(1+y^2)dx-(e^-tan-1y)dy=0