Question

Which has more solutions? (1,+∞) or (-∞, 7)?

Answer 1

not comparable..both have infinite no of pts

Answer 2

how about (1,+∞) or (-∞, 1)?
(1,+∞) or (-∞, -1)?
still incomparable? is it ever comparable in some way?

Answer 3

bot have infinite no of pts

Answer 4

so still incomparable?

Answer 5

just got for the second one, him is being an idiot lols

Answer 6

how?

Answer 7

what do you mean by, "just got for the second one"?

Answer 8

well going by his logic there would be the same number of solutions in the interval (3.99 , 4 ) as there is in the interval (-infinity, +infinity )

Answer 9

i never said that

Answer 10

i said the no of solutions cant be compared

Answer 11

:\

Answer 12

I am not getting into any discussions about how large is infinity, or if you can more than infinity or anything , because that arguing is for the useless mathematicians in my opinion.

Answer 13

intutively the largest interval would have the most in it.

yes "infinity" strictly isnt defined , but still

Answer 14

yeah..thats wht i meant..comparison of sets not finite is meaningless

Answer 15

You can't speak of "solutions" without an equation. Both intervals could have the same number of solutions or even none. Kind of like asking how many more pies are in the apple tree or the cherry.

Answer 16

right..lots of ways to think of it

Answer 17

fairly sure by "solutions" they just mean points in the interval :|

Answer 18

most prob

Answer 19

That's sloppy reasoning. If you were designing a circuit would you assume it was for 110v?

Answer 20

Not really, if you're asking for Solutions you need to give an equation.

If you'd like the number of points between the two values the both have an infinite number of points betweeen the intervals. Hence neither have more points than the other.

However, (1, 2) both have an infinite number of points between the intervals.

Answer 21

yeh why not lols

Answer 22

Your dryer might leave you with wet clothes.

Answer 23

http://en.wikipedia.org/wiki/Cardinality

Answer 24

- pardon from all - but why you have told those answers hence in this way ???
- this question it is very easy answered - just,only with one substitution - what is that

( minus infinity , 0) is equal with (0 , plus infinity)

- so in this case the correct answer is that (minus infinity , 7) which has more solutions .

- hope that this is clearly

Answer 25

@jhonyy9 What's a "solution"?

Answer 26

ok estudier - so but i think that this question was take it incorrect because i think he or she want asked that from those two sectors (intervals) what can containing more solutions - in differences equations or math exercises cases - and if my suppose is it true i think that what and how i have wrote is the correct answer

Answer 27

The problem is the use of plus/minus infinity (the extended real line).

Things don't always work properly when you do that.

Answer 28

yes this is sure but this question depend the asked person how have thought it ???