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#1 Re: Help Me ! » Proof » 2011-09-08 23:15:27
1) Prove: if n<0 and |m|= m-n/m+n , -1<m<0 or m>1
2) Given m = 4-x/3, n = x+3/4, p = 2-3x/5 , and m>n>p
Prove that the possible value of x is {-7/17<x<1}
#2 Re: Help Me ! » Proof » 2011-09-08 23:08:59
okay thanks, 1 and 2 have fractions, i'll try to re write it again 
#3 Help Me ! » Proof » 2011-09-08 22:35:04
- fromwodehouse
- Replies: 21
we had a test and i got these three numbers wrong because i really dont understand a single thing about it and im still in grade 9. and since it bugging me i want to know how to do these things. Thanks ahead!
m-n
1) Prove: if n<0 and |m|= ------ , -1<m<0 or m>1
m+n
4-x x+3 2-3x
2) Given m = ------- , n = ------- , p = ------ , and m>n>p
3 4 5
7
Prove: the possible value of x is - <x <1
17
3) Positive numbers a,b, and c satisfy the inequality a+b+c> abc. Prove that a^2+b^2+c^2>abc
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