CUET Mathematics: CalculusDifferential Equations. Free, no login required.

Q1:

2022: 30 Aug Shift 1

Differential Equations

Easy

Core

Order and degree of the differential equation ydydx+4dydx=5y\frac{dy}{dx} + \frac{4}{\frac{dy}{dx}} = 5 are

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Option 1
Correct Answer
Explanation for 2022: 30 Aug Shift 1 MAT question 1

Q2:

2022: 30 Aug Shift 1

Differential Equations

Medium

Core

Solution of the differential equation (x+xy)dy−y(1−x2)dx=0(x + xy)dy - y(1 - x^2)dx = 0 is

Answer options
Option 1
Correct Answer
Explanation for 2022: 30 Aug Shift 1 MAT question 2

Q3:

2022: 30 Aug Shift 1

Differential Equations

Easy

Core

The integrating factor of the differential equation cos⁡xdydx+ysin⁡x=1\cos x \frac{dy}{dx} + y\sin x = 1 is

Answer options
Option 1
Correct Answer
Explanation for 2022: 30 Aug Shift 1 MAT question 3

Q4:

2022: 30 Aug Shift 1

Differential Equations

Hard

Core

The order and degree of the differential equation [(d2ydx2)2−3]13=2(dydx)14\left[\left(\frac{d^2y}{dx^2}\right)^2 - 3\right]^{\frac{1}{3}} = 2\left(\frac{dy}{dx}\right)^{\frac{1}{4}} are

Answer options
Option 3
Correct Answer
Explanation for 2022: 30 Aug Shift 1 MAT question 4

Q5:

2022: 16 July Shift 2

Differential Equations

Easy

Core

Integrating factor of the differential equation dydx−1xy=1\frac{dy}{dx} - \frac{1}{x} y = 1 is:

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Q6:

2022: 16 July Shift 2

Differential Equations

Medium

Core

The order and the degree of the differential equation d2ydx2+x(dydx)2=2x2log⁡(d2ydx2)\frac{d^2y}{dx^2} + x\left(\frac{dy}{dx}\right)^2 = 2x^2 \log\left(\frac{d^2y}{dx^2}\right) are respectively:

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Q7:

2022: 16 July Shift 2

Differential Equations

Easy

Core

Match List I with List II.

List IList II
A. d2ydx2+dydx=0\frac{d^2y}{dx^2} + \frac{dy}{dx} = 0I. order 3, degree 1
B. (d2ydx2)2=0\left(\frac{d^2y}{dx^2}\right)^2 = 0II. order 2, degree 2
C. d3ydx3+d2ydx2+y=0\frac{d^3y}{dx^3} + \frac{d^2y}{dx^2} + y = 0III. order 2, degree 1
D. sin⁡(dydx)+5y=0\sin\left(\frac{dy}{dx}\right) + 5y = 0IV. order 1, degree is not defined

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Q8:

2022: 16 July Shift 2

Differential Equations

Easy

Core

The number of arbitrary constants in the general solution of a differential equation of fourth order is:

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Q9:

2022: 23 Aug Shift 1

Differential Equations

Medium

Core

The solution of differential equation y(1−x2)dydx=x(1+y2)y(1 - x^2)\frac{dy}{dx} = x(1 + y^2) is :

Answer options
Option 1
Correct Answer
Explanation for 2022: 23 Aug Shift 1 MAT question 9

Q10:

2022: 23 Aug Shift 1

Differential Equations

Easy

Core

The integrating factor of the differential equation xdydx−y=2x2x\frac{dy}{dx} - y = 2x^2 is :

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Q11:

2022: 23 Aug Shift 1

Differential Equations

Medium

Core

Match List - I with List - II

List - I (Differential Equation)List - II (Degree)
A. [1+(y′)2]2=y′′\left[1 + (y')^2\right]^2 = y''I. 22
B. [1+(y′′)3]12=(y′)3\left[1 + (y'')^3\right]^{\frac{1}{2}} = (y')^3II. 44
C. (y′′′)2+y′′+3y′+5y=ex(y''')^2 + y'' + 3y' + 5y = e^xIII. 11
D. [1+(y′)3]12=(y′′)2\left[1 + (y')^3\right]^{\frac{1}{2}} = (y'')^2IV. 33

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Q12:

2022: 23 Aug Shift 1

Differential Equations

Medium

Core

Choose the correct statements:

A. The order and degree (if defined) of a differential equation are always positive integrals

B. The order of a differential equation is the highest order derivative of the dependent variable with respect to the independent variable involved in a differential equation

C. If dydx+P(x)y=Q(x)\frac{dy}{dx} + P(x)y = Q(x) then Integrating factor =e∫P(x)dx= e^{\int P(x)dx}

D. The sum of order and degree of differential equation 1+(y′′)5=(y′′′)31 + (y'')^5 = (y''')^3 is 88

E. If the solution of a differential equation of order nn, contains nn arbitrary constant, then it is called a general solution

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Q13:

2022: 25 May Shift 1

Differential Equations

Easy

Common

The differential equation dydx+xy=0\frac{dy}{dx} + \frac{x}{y} = 0, represents the family of curves:

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Q14:

2022: 25 May Shift 1

Differential Equations

Easy

Common

The degree of the differential equation

(1+dydx)4=(d2ydx2)2\left(1 + \frac{dy}{dx}\right)^4 = \left(\frac{d^2y}{dx^2}\right)^2 is:

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Q15:

2022: 25 May Shift 1

Differential Equations

Easy

Core

Solution of dydx=(1+x2)(1+y2)\frac{dy}{dx} = (1+x^2)(1+y^2) is:

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Q16:

2022: 25 May Shift 1

Differential Equations

Medium

Core

Particular solution of the differential equation log⁡(dydx)=x+y\log\left(\frac{dy}{dx}\right) = x + y, given that when x=0,y=0x = 0, y = 0 is:

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Q17:

2022: 25 May Shift 1

Differential Equations

Medium

Core

The solution of the differentiable equation 2xdydx+y=14x3,x>02x\frac{dy}{dx} + y = 14x^3, x > 0, is

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