Mathematics - II (3110015) MCQs

MCQs of Series Solutions of ODEs and Special Functions

Showing 31 to 30 out of 40 Questions
31.
For the D.E. (x2+1)y''-6xy'-4y=0, x are ....... points.
(a) Irregular Singular
(b) Ordinary
(c) Regular Singular
(d) Singular
Answer:

Option (b)

32.
....... is series solution of dydx=0.
(a) c1
(b) n=0cnxn
(c) n=1cnxn-1
(d) None of these
Answer:

Option (a)

33.
For the D.E. (x2-9)2y''+(x-3)y'+2y=0 a regular singular point is ........
(a) x=3
(b) x=-3
(c) x=0
(d) None of these
Answer:

Option (a)

34.
For the D.E. (x2-9)2y''+(x-3)y'+2y=0 an irregular singular point is .....
(a) x=3
(b) x=-3
(c) x=0
(d) None of these
Answer:

Option (b)

35.
In Frobenius Method, the series solution of any D.E. around regular singular point x=x0, x00 assumes the form .......
(a) k=0ak xm+k
(b) k=1ak (x-x0)m+k
(c) k=0ak (x-x0)m+k
(d) k=1ak xm+k
Answer:

Option (c)

36.
In Frobenius Method, for solving D.E., the equation formed by equating to zero the coefficient of the lowest power forms in x is called ......
(a) Indicial Equation
(b) Recurrence Relation
(c) Frobenius Equation
(d) None of these
Answer:

Option (a)

37.
In Frobenius Method, the equation formed from the coefficient of the highest powers of x is called……….
(a) Recurrence Relation
(b) Indicial Equation
(c) Frobenius Equation
(d) None of these
Answer:

Option (a)

38.
In the series solution of a D.E. by Frobenius logarithmic term always present in the answer when the roots of an indicial equation are……..
(a) Not differing by integer
(b) Equal
(c) Differing by integer
(d) None of these
Answer:

Option (b)

39.
The true statement of following for the power series f(x)=k=0an(x-x0)n ......
(a) The series only converges to x=x0
(b) The series converges for all x
(c) The series converges for x-x0<P & diverges for x-x0>P, where P+
(d) All of the above
Answer:

Option (d)

40.
For the D.E. (x2+1)(x-4)3y''+(x-4)2y'+y=0, the singular points are ......
(a) x=+i
(b) x=±4
(c) x=±i
(d) x=±i, 4
Answer:

Option (d)

Showing 31 to 30 out of 40 Questions