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Delhi University MCA Rings Previous Year Questions (PYQs)
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Delhi University MCA Rings Previous Year Questions (PYQs)
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Delhi University MCA
Previous Year Questions
Delhi University MCA
Previous Year Questions
Delhi University MCA
Qus : 1
3
1
(a)
2
(b)
3
(c)
4
(d)
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Solution
Qus : 2
4
Which one of the following statements is NOT correct in the ring
R
=
Z
4
⊕
Z
6
?
1
(a) The set of all units in R is {(1,1), (1,5), (3,1), (3,5)}
2
The set of all nilpotent elements in R is {(0,0), (0,2)}
3
The total number of zero-divisors in R is 28
4
The set of zero-divisors is
{
(
a
,
b
)
:
a
=
0
,
2
and
b
=
0
,
2
,
3
,
4
}
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Discussion
✓
Solution
Qus : 3
2
1
(a)
2
(b)
3
(c)
4
(d)
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Video Solution
Discussion
✓
Solution
Delhi University MCA
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Delhi University MCA
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