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Recent questions tagged differential equations
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1
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The differential equation of all non-horizontal lines in a plane is (A) d^2y/dx^2 = 0
asked
Apr 7, 2019
in
JEE
by
kratos
jee
class-12
differential equations
jee mains
+1
vote
1
answer
In a bank, principal increases continuously at the rate of 5% per year
asked
Apr 7, 2019
in
Class 12
by
kratos
class-12
differential equations
bseb model set
+1
vote
1
answer
The solution of the differential equation dy/dc = y/x + ϕ(y/x)/ϕ(y/x) is
asked
Apr 7, 2019
in
JEE
by
kratos
ordinary differential equations
nda
class-11
jee
differential equations
jee mains
class-12
+1
vote
1
answer
Solve : (x + log y)dy + ydx = 0
asked
Apr 7, 2019
in
JEE
by
kratos
jee
differential equations
bseb model set
jee mains
class-12
+3
votes
1
answer
Solve by the method of variation of parameters y" + 4y′ + 4y = 4 + e^-2x/x.
asked
Apr 7, 2019
in
JEE
by
kratos
jee
differential equations
variation of parameters
laplace transform
jee mains
inverse laplace transforms
+2
votes
1
answer
If f(x) = cos (log x), then f(1/x) f(1/x) -1/2[f(x/y) + f(xy)] is equal to
asked
Apr 6, 2019
in
JEE
by
kratos
class-11
jee
differential equations
relations and functions
functions
jee mains
sets
+2
votes
1
answer
Find the differential equation representing the family of curves V = A/r + B, where A and B are arbitrary constants.
asked
Apr 5, 2019
in
Class 12
by
kratos
class-12
differential equations
cbse
+2
votes
1
answer
The integrating factor of dy/dx + y = (1+y)/x is _____.
asked
Apr 5, 2019
in
Class 12
by
kratos
class-12
differential equations
+1
vote
1
answer
Solve (D^2 + 4)y = x^4 + cos^2x
asked
Apr 5, 2019
in
Class 12
by
kratos
class-12
differential equations
+3
votes
1
answer
Find the general solution of the ordinary differential equation d^4y/dx^4 + 4y = sin2x + 2x + e^x.
asked
Apr 5, 2019
in
JEE
by
kratos
cbse
jee
differential equations
jee mains
class-12
+2
votes
1
answer
Prove that the radius of curvature for the catenary y = c cos h x/c is equal to the portion of the normal intercepted between the curve and the X-axis
asked
Apr 5, 2019
in
JEE
by
kratos
jee
differential equations
parabola
jee mains
class-12
+1
vote
1
answer
Equation of a tangent to the curve y cot x = y^3 tanx at the point where the abscissa is π/4, is:
asked
Apr 5, 2019
in
JEE
by
kratos
applications of derivatives
jee
differential equations
applications of differential calculus
jee mains
class-12
+2
votes
1
answer
Find the equation of the quartic curve which has x = 0, y = 0, y = x, and y = –x four asymptotes which pass through (a, b)
asked
Apr 5, 2019
in
JEE
by
kratos
jee
differential equations
jee mains
+3
votes
1
answer
Trace the curve x = (y – 1)(y – 2)(y – 3).
asked
Apr 5, 2019
in
JEE
by
kratos
jee
differential equations
jee mains
+3
votes
1
answer
Find the order and the degree of (d^2y/dx^2) + (dy/dx)^2 + xy = 0
asked
Apr 4, 2019
in
JEE
by
kratos
jee
class-12
differential equations
jee mains
+3
votes
1
answer
The differential equation dy/dx = √(1 - y^2)/y determines a family of circles with (A) variable radii and a fixed centre at (0, 1);
asked
Apr 4, 2019
in
JEE
by
kratos
jee
differential equations
jee mains
+3
votes
1
answer
Solve: xdx + ydy = xdy – ydx.
asked
Apr 4, 2019
in
JEE
by
kratos
jee
differential equations
jee mains
+1
vote
1
answer
If f(x) = ∫(log t/(1 + t + t^2)) dt for t ∈ [1,x], x ≥ 1, prove that f(x) = f (1/x).
asked
Apr 4, 2019
in
JEE
by
kratos
jee
differential equations
jee mains
+2
votes
1
answer
If e^y = y^x . PT dy/dx= (logy)^2 / logy-1
asked
Apr 3, 2019
in
JEE
by
kratos
differential calculus
differentiation
jee
differential equations
jee mains
class-12
differentiability
continuity
+1
vote
1
answer
Solution of (dy/dx) = 1 + x + y^2 + xy^2, y(0) = 0 is: (A) y = tan(c + x + x^2)
asked
Apr 3, 2019
in
JEE
by
kratos
jee
class-12
differential equations
jee mains
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