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Download VTU BE 2020 Jan CSE Question Paper 17 Scheme 4th Sem 17MATDIP41 Additional Mathematics II

Download Visvesvaraya Technological University (VTU) BE ( Bachelor of Engineering) CSE 2017 Scheme 2020 January Previous Question Paper 4th Sem 17MATDIP41 Additional Mathematics II

This post was last modified on 02 March 2020

17MATDIP41
Fourth Semester B.E. Degree Examination, Dec.2019/Jan.2020
Additional Mathematics - II
Time: 3 hrs. Max. Marks: 100
Note: Answer any FIVE full questions, choosing ONE full question from each module.

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ti Module-1
0 1 a_ Find the rank of the matrix:
2 3 5 4 -
cr, A = 0 2 3 4 by elementary row transformations. (08 Marks)
CS

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4 8 13 12
t'.1)
4 .3 kr)
tj)
OC

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E
C u

C rr
tu

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2
b.
c.
a.
Solve by Gauss elimination method

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2x + v + 4z ---- 12
4x+ lly?z= 33
8x ? 3y + 2z = 20
Find all the eigen values for the matrix A
OR

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Reduce the matrix
8
?6
2
? 6

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7
-4
2
-- 4
3

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(06 Marks)
(06 Marks)
1 2 3 2
2 3 5 1 into its echelon form and hence find its rank. (06 Marks)
1 3 4 5

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b. Applying Gauss elimination method, solve the system of equations
2x + 5y + 7z = 52
2x+y?z= 0
x + y + z = 9
7

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?2
0
c. Find all the eigen values for the matrix A =
2 6 ? 2
0 ? 2 5

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Module-2
(06 Marks)
(08 Marks)
a.
b.

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c.
a.
b.
Solve
Solve

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Solve
Solve
Solve
d
4

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y 2d y d
2
y
0
=

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(06 Marks)
(06 Marks)
(08 Marks)
(06 Marks)
(06 Marks)

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dx
4
dx
3
dx

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2

d2 y 6dy
+ 9y 5e
-2

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' =
dx
2
dx
2

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d y+
by the method of variation y = sec x of parameters.
dx
-
OR

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d'y

0 y=
dx
y" + 3y' + 2y = I 2x

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2

USN
3
4

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l oft
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17MATDIP41
Fourth Semester B.E. Degree Examination, Dec.2019/Jan.2020
Additional Mathematics - II

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Time: 3 hrs. Max. Marks: 100
Note: Answer any FIVE full questions, choosing ONE full question from each module.
ti Module-1
0 1 a_ Find the rank of the matrix:
2 3 5 4 -

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cr, A = 0 2 3 4 by elementary row transformations. (08 Marks)
CS
4 8 13 12
t'.1)
4 .3 kr)

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tj)
OC
E
C u

--- Content provided by FirstRanker.com ---

C rr
tu
2
b.
c.

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a.
Solve by Gauss elimination method
2x + v + 4z ---- 12
4x+ lly?z= 33
8x ? 3y + 2z = 20

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Find all the eigen values for the matrix A
OR
Reduce the matrix
8
?6

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2
? 6
7
-4
2

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-- 4
3
(06 Marks)
(06 Marks)
1 2 3 2

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2 3 5 1 into its echelon form and hence find its rank. (06 Marks)
1 3 4 5
b. Applying Gauss elimination method, solve the system of equations
2x + 5y + 7z = 52
2x+y?z= 0

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x + y + z = 9
7
?2
0
c. Find all the eigen values for the matrix A =

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2 6 ? 2
0 ? 2 5
Module-2
(06 Marks)
(08 Marks)

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a.
b.
c.
a.
b.

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Solve
Solve
Solve
Solve
Solve

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d
4
y 2d y d
2
y

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0
=
(06 Marks)
(06 Marks)
(08 Marks)

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(06 Marks)
(06 Marks)
dx
4
dx

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3
dx
2

d2 y 6dy

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+ 9y 5e
-2
' =
dx
2

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dx
2
d y+
by the method of variation y = sec x of parameters.
dx

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-
OR
d'y

0 y=

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dx
y" + 3y' + 2y = I 2x
2

USN

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3
4
l oft
17MATDIP41
c. Solve by the method of undetermined coefficients :

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y" ? 4y' + 4y = e
X
(08 Marks)
Module-3
5 a. Find the Laplace transforms of sin5t cos2t (06 Marks)

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b. Find the Laplace transforms of (3t + 4)
3
(06 Marks)
sin 2t 0 < t <
c. Express f(t)

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0 tin
in terms of unit step function and hence find L[f(t)]. (08 Marks)
OR
. 1
6 a. Find the Laplace transforms of

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t
(06 Marks)
b. Find the Laplace transform of 2' + t sin t (06 Marks)
c. If f(t) = t
2

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0 < t < 2 and I(t + 2) = fft) , for t > 2, find L[Rt)j. (08 Marks)
Module-4
7 a_ Find the Laplace Inverse of
(08 Marks)
(06 Marks)

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(06 Marks)
(06 Marks)
(06 Marks)
(08 Marks)
(s +1)(s ?1)(s + 2)

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b. Find the inverse Laplace transform of ,
3s + 7
s
-
? 2s ?3

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c. Solve y" + 2y` ? 3y = sin t, y(0) = 0, y
1
(0)
OR
8 a. Find the inverse Laplace transform of

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+ a
\
~s+b 1
b. Find the inverse Laplace transform of
4s ?1

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?
s' + 25
c. Find the inverse Laplace of y" 5y` + 6y = e' with y(0) = yr(0) = 0.
log
Module-5

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9 a. State and prove Addition theorem on probability_ (05 Marks)
b. A student A can solve 75% of the problems given in the book and a student B can solve
70%. What is the probability that A or B can solve a problem chosen at random. (06 Marks)
c. Three machines A, B, C produce 50%, 30% and 20% of the items in a factory. The

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percentage of defective outputs of these machines are 3, 4 and 5 respectively. If an item is
selected at random, what is the probability that it is defective? If a selected item is defective,
vvrhat is the probability that it is from machine A? (09 Marks)
OR
10 a. Find the probability that the birth days of 5 persons chosen at random will fall in 12 different

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calendar months. (05 Marks)
b. A box A contains 2 white balls and 4 black balls. Another box B contains 5 white balls and
7 black balls. A ball is transferred from box A to box B. Then a ball is drawn from box B.
Find the probability that it is white. (06 Marks)
c. State and prove Baye's theorem.

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(09 Marks)
* * * * *
2
of 2
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