Tuesday, May 19, 2009

Problem #5

Question:

Solve this inequality:











Answer:

First square both side; We can do this since is equal to

Next we solve for X








Now lets think, we have two factors being multiplied together which in turn must produce a number less than 0. So, one factor must be greater than zero because multiplying two negative #s gives a positive # (which is greater than zero). Thus if X is the negative one then they will both be negative because the second one depends on the value of X. Thus X CAN NOT BE NEGATIVE. So this is how we break it down:



&



Here it is Motha Fuka



Thus is our set.

1 comment:

  1. For more math problems go here: http://en.wikiversity.org/wiki/User_talk:Srmeier#Problems

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