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meghashyamc
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Recent activity by meghashyamc
1
answer
1
There are six runners in the 100-yard dash. How many ways are there for three medals to be awarded if ties are possible?
There are six runners in the 100-yard dash. How many ways are there for three medals to be awarded if ties are possible? (The runner or runners who finish with the fastes...
4.8k
views
commented
Aug 17, 2017
Combinatory
combinatory
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–
6
answers
2
GATE CSE 1998 | Question: 10a
Prove by induction that the expression for the number of diagonals in a polygon of $n$ sides is $\frac{n(n-3)}{2}$
Prove by induction that the expression for the number of diagonals in a polygon of $n$ sides is $\frac{n(n-3)}{2}$
3.7k
views
commented
Aug 10, 2017
Set Theory & Algebra
gate1998
set-theory&algebra
descriptive
relations
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–
1
answer
3
lattice
i know that In distributive lattice , a given element can have at most one complement. what if there are some elements in lattice for which complement doesn't exist? what i mean to ask is, here AT MOST means element can have <= 1 complement , so there may some elements which has 0 ( means < 1 ) complement. then also that lattice is called as distributive?
i know that In distributive lattice , a given element can have at most one complement. what if there are some elements in lattice for which complement doesn't exist?what ...
723
views
answered
Aug 9, 2017
3
answers
4
GATE CSE 1992 | Question: 14b
Consider the set of integers $\{1,2,3,4,6,8,12,24\}$ together with the two binary operations LCM (lowest common multiple) and GCD (greatest common divisor). Which of the following algebraic structures does this represent? group ring field lattice
Consider the set of integers $\{1,2,3,4,6,8,12,24\}$ together with the two binary operations LCM (lowest common multiple) and GCD (greatest common divisor). Which of the ...
4.6k
views
commented
Aug 4, 2017
Set Theory & Algebra
gate1992
set-theory&algebra
partial-order
lattice
normal
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–
4
answers
5
GATE CSE 1993 | Question: 28
Let $\left(\{ p,q \},*\right)$ be a semigroup where $p*p=q$. Show that: $p*q=q*p$ and $q*q=q$
Let $\left(\{ p,q \},*\right)$ be a semigroup where $p*p=q$. Show that:$p*q=q*p$ and$q*q=q$
4.5k
views
answered
Aug 4, 2017
Set Theory & Algebra
gate1993
set-theory&algebra
group-theory
normal
descriptive
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–
1
answer
6
Gate CSE Web Link on Groups: Conceptual Doubt
My question is about sub-groups. I didn't understand how A non-empty subset H is a sub-group of a finite group G if and only if for all a belongs to H, b belongs to H, a*b belongs to H. For example, (⎨1, 1/2 and ... to on the Gate CSE site under 'Set Theory and Algebra' says: Could someone please tell me what this means/how this is true?
My question is about sub-groups.I didn't understand how A non-empty subset H is a sub-group of a finite group G if and only if for all a belongs to H, b belongs to H, a...
360
views
asked
Aug 3, 2017
Set Theory & Algebra
group-theory
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–
1
answer
7
Gilbert Strang (Books/Video Lectures) Doubt About Which Portions Are Relevant for GATE
Hi. I am trying to prepare for the linear algebra portion for GATE through either Gilbert Strang's video lectures or book. Can anyone please mention which of Gilbert Strang's video lectures given here ... his book Linear Algebra and Its Applications (4th edition) are relevant for GATE? Thanks a lot!
Hi.I am trying to prepare for the linear algebra portion for GATE through either Gilbert Strang's video lectures or book.Can anyone please mention which of Gilbert Strang...
1.1k
views
commented
Aug 3, 2017
Linear Algebra
linear-algebra
gilbert-strang
engineering-mathematics
preparation
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1
answer
8
Relations: Doubt About Composites (Conceptual)
If R is any relation: is Rno R (composite of Rn and R) the same as R o Rn?
If R is any relation:is Rno R (composite of Rn and R) the same as R o Rn?
283
views
asked
Jul 23, 2017
Set Theory & Algebra
relations
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–
1
answer
9
Discrete Maths: First Order Logic - Question in my mind based on question from Kenneth Rosen
This is not a direct question from Rosen but a question that popped up in my head as I was solving problems from Rosen. 1) ∀x∃y(x≠y → M(x,y)) 2) ∀x∃y(x≠y ∧ M(x,y)) Here the ... Also, could you please explain the difference between the meaning of these statements (in plain English) if they are different?
This is not a direct question from Rosen but a question that popped up in my head as I was solving problems from Rosen.1) ∀x∃y(x≠y → M(x,y))2) ∀x∃y(x≠y ∧ ...
725
views
asked
Jul 12, 2017
Mathematical Logic
quantifiers
discrete-mathematics
mathematical-logic
propositional-logic
kenneth-rosen
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2
answers
10
Discrete Maths Rosen 6th Edition - Is the section 'proofs and strategy' part of the Gate syllabus?
Hi. I am new to Gate preparation. It would be very helpful if someone could clarify: Are Section 1.6 and 1.7 (Introduction to Proofs and Proof Methods and Strategy) from Kenneth Rosen (6th Edition) part of the Gate Syllabus? I didn't see them mentioned in the syllabus, hence asking. Thanks.
Hi.I am new to Gate preparation. It would be very helpful if someone could clarify:Are Section 1.6 and 1.7 (Introduction to Proofs and Proof Methods and Strategy) from Ke...
970
views
commented
Jul 12, 2017
Mathematical Logic
kenneth-rosen
discrete-mathematics
syllabus
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