# Yahoo Web Search

1. Sort by

1. ### Let R be the relation on Z defined by mRn if and only if mn>0 or m=n=0 1 Prove R is an equivalence relation 2 How many distinct equivalence?

...and zero. For any two positive integers m and n, mn > 0 and so mRn. For any two negative integers m and n, mn > 0 and so mRn...

1 Answers · Science & Mathematics · 17/09/2019

2. ### How do you prove a triangle I isosceles by using a proof?

NQ || MR ∠ 1 = ∠ MRN (alternate angles equal) ∠ 2 = ∠ NMR (corresponding ...

4 Answers · Science & Mathematics · 30/11/2017

3. ### SAT question?

m = n^2 + 1...........(1) n = p^2 + 1..............(2) Substitute for n using (2) m = (p^2 + 1)^2 + 1 = p^4 + 2p^2 + 1 + 1 = p^4 + 2p^2 + 2

2 Answers · Science & Mathematics · 22/12/2016

4. ### Prove that the relation is an Equivalence relation?

... is clear that the relation is reflexive (mRm always), symmetric (mRn iff nRm), and transitive (mRn and nRo will always imply mRo...

1 Answers · Science & Mathematics · 22/03/2014

5. ### Help with showing that R is an equivalence relation?

I take it ℕ in this context refers to the set of natural numbers. To show a relation is an equivalence relation, we need to show that it is reflexive, symmetric, and transitive. Reflexivity: Clearly, for any natural number a, aRa...

1 Answers · Science & Mathematics · 18/09/2012

6. ### multiplying factions Mr/ns * st/mr=?

Multiply numerator across and denominator across. We get mrst/nsmr. The m r and s cancels out. We are left with t/n, which is b.

3 Answers · Science & Mathematics · 01/03/2013

7. ### How do I solve this question?

for a you just sub the values in function 0.833M0 0.279M0 7.6 days just take the derivative for c then sub in 1 and 7

1 Answers · Science & Mathematics · 19/01/2012

8. ### if m and n are lines in a plane P, define mRn to mean m and n are parallel. is R an equivalence relation on P?

Chuck Testa.

1 Answers · Science & Mathematics · 29/09/2011

9. ### m is said to be related to n if m and n are integers and m-n is diivisible by 13.does this define an equivalan?

...reflexive: n-n=0 and 13|0 so nRn R is symmetric: If mRn then 13|(m-n), i.e., m-n = 13k for some integer k. Then n-m = -13k = 13(-k...

1 Answers · Science & Mathematics · 07/05/2011

10. ### Define a relation R on the set Z of all integers as follows: For all m, n elements of Z, mRn if and only if?

No. 4R2 and 2R4 but 2 =/= 4.

2 Answers · Science & Mathematics · 05/05/2011