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Differential Equations - 5 - Mathematics MCQ


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20 Questions MCQ Test Topic-wise Tests & Solved Examples for Mathematics - Differential Equations - 5

Differential Equations - 5 for Mathematics 2024 is part of Topic-wise Tests & Solved Examples for Mathematics preparation. The Differential Equations - 5 questions and answers have been prepared according to the Mathematics exam syllabus.The Differential Equations - 5 MCQs are made for Mathematics 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Differential Equations - 5 below.
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Differential Equations - 5 - Question 1

The interval for x, over which the solution of IVP dy(2 + x2 + y2) -dx (1 + 2x + 3y) = 0,y(0) = 0, R : |x| ≤ 2, |y| ≤ 1 exists, is

Detailed Solution for Differential Equations - 5 - Question 1

The interval for x over which the solution of the given initial value problem (IVP) exists is -2 ≤ x ≤ 2. This interval is determined by the condition |x| ≤ 2, which states that the value of x must be between -2 and 2, inclusive. The condition |y| ≤ 1 does not affect the interval for x. The options -1/4 ≤ x ≤ 1/4 and -1/2 ≤ x ≤ 1/2 are not valid intervals for x because they do not satisfy the condition |x| ≤ 2.

Differential Equations - 5 - Question 2

let n be a non-negative integer. The eigen values of the Sturm-Lioville problem  with boundary condition y(0) = 

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Differential Equations - 5 - Question 3

The initial value problem  has a unique solution, if (x0, y0) equals

Differential Equations - 5 - Question 4

One of the points which lies on the solution curve of the differential equation (y – x) dx + (x + y) dy = 0, the curve passes through (0,1)

Detailed Solution for Differential Equations - 5 - Question 4

The given equation is
(y – x)dx + (x + y)dy = 0
or (y dx + x dy) – x dx + y dy = 0 Integrating,

At x = 0, y = 1,


so (2, 1) lies on the solution of the curve.

Differential Equations - 5 - Question 5

The solution of the differential equation  which vanishes when x = 0 and tends to a finite limit as  x →  -∞ is

Differential Equations - 5 - Question 6

If u1, u2, u3 are solutions of the equation  then 2u1 + au2 + bu2 and au1 + bu2 + u3 are also solutions of given differential equation, then the values of a and b are 

Differential Equations - 5 - Question 7

The largest value of c such that there exists a function h(x) for -c < x < c that is a solution dy/dx = 1 +ywith h(0) = 0 is given by

Differential Equations - 5 - Question 8

Let y1 and y2 be two linearly independent solutions of y" + (sin x)y = 0, 0 ≤ x ≤ 1
Let g(x) = W(y1, y2) (x) be the Wronskian of y1 and y2.
Then,

Differential Equations - 5 - Question 9

If y1(x) and y2(x) are solutions of y" + x2y' - (1 - x) y = 0 such that y1(0) = 0 ,y1'(0 ) = -1 and y2(0) = - 1, y2' (0) = 1, then the Wronskian W(y1, y2) on R

Differential Equations - 5 - Question 10

For the sturm-Liouville problem (1 + x2)y" + 2xy' + λx2y = 0 with y'(1) = 0 and y'(10) = 0 the eigen values, λ satisfy

Differential Equations - 5 - Question 11

Consider the following statement for IVP  y(0) = 1 ,D : |x| ≤ 1, |y - 1 | ≤ 1
I. It has a solution which exists for all n
II. The local interval for which the solution exists uniquely is 
III. It has no solution in the interval |x| ≤ 3.
Then select the correct code.

Differential Equations - 5 - Question 12

Let y(x) be a non-trivial solution of the 2nd order linear differential equation

where C < 0; K > 0 and C2 > K, then

Differential Equations - 5 - Question 13

Let y1(x) and y2(x) be two linearly independent solution of the differential equation  satisfying y1(0) = 1, y2(0) = -1 y'1(0) = 1 and y'2( 0) = 1. Then, the Wronskian of y1(x) and y2(x) at x = 2, i.e.,  is equal to

Differential Equations - 5 - Question 14

The coordinate at a moving point P satisfying the equations   of the curve passes through the point (π/2, 0). When t = 0, then the equation of the curve in rectangular coordinates is

Differential Equations - 5 - Question 15

Let yand y2 be solutions of Bessel’s equation t2y" + ty' + (t2 - n2)y = 0 on the interval 0 < t < ∝ with y1(1) = 1, y'1 (1) = 0, y2(1) = 0 and y'2(1) = 1, then value of W[y1, y2] (t) is

Differential Equations - 5 - Question 16

Differential equation |y'| + |y| = 0 has 

Differential Equations - 5 - Question 17

Let A be a 3 x 4 matrix of rank 2. Then the rank of ATA, where AT denotes the transpose of A. is,

Detailed Solution for Differential Equations - 5 - Question 17

We know Rank A = Rank AT= 2 and also we know Rank (AB) £ min {Rank A, Rank B} as here we are taking product of matrix with its transpose. Thus Rank (ATA) = 2

Differential Equations - 5 - Question 18

The solution of y" + ay' + by = 0 where a and b are constants, approaches to zero as x → ∝ then

Differential Equations - 5 - Question 19

The primitive of the differential equation

Differential Equations - 5 - Question 20

For the initial value problem y' = f(x,y) with y(0)  = 0,
which of the following statement is true?

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