Results 1 to 2 of 2

Math Help - please help me

  1. #1
    Member
    Joined
    Aug 2008
    Posts
    172

    please help me

    Let :
    Follow Math Help Forum on Facebook and Google+

  2. #2
    MHF Contributor

    Joined
    Aug 2006
    Posts
    18,605
    Thanks
    1574
    Awards
    1
    Quote Originally Posted by flower3 View Post
    Let :
    I find it difficult to understand why this question is posted in an advanced forum.
    I will let you work out this fact: \left( {\exists N} \right)\left[ {n \geqslant N\, \Rightarrow \,\left| {x_n  + 3} \right| < 7} \right].
    Note that: \left| {x_n ^2  - 9} \right| = \left| {x_n  + 3} \right|\left| {x_n  - 3} \right|
    It follows from that fact.
    Follow Math Help Forum on Facebook and Google+


/mathhelpforum @mathhelpforum