Hi,
I'm currently in Precalculus and I'm just stumped on two problems and my book is not very helpful in going into detail on how to achieve a certain solution.
Here is the problem: x+3/x-1 >= 0
The book gives the solution of (-infinity,-3]U(1,infinity), how does the 1 get a "(" and not a "[". A step by step breakdown would be helpful, I'm just missing one piece to this puzzle and, again, the book isn't too helpful.
The second inequality is (1-x)(x+2)/x(x+1) > 0
The book gives the solution of (-2,-1)U(0,1), again it only gives the solution to the problem and no other examples. Kind of frustrating, but it's been a long time since I've had to mess with inequalities.
Thanks for any help,
Ryan
I'm currently in Precalculus and I'm just stumped on two problems and my book is not very helpful in going into detail on how to achieve a certain solution.
Here is the problem: x+3/x-1 >= 0
The book gives the solution of (-infinity,-3]U(1,infinity), how does the 1 get a "(" and not a "[". A step by step breakdown would be helpful, I'm just missing one piece to this puzzle and, again, the book isn't too helpful.
The second inequality is (1-x)(x+2)/x(x+1) > 0
The book gives the solution of (-2,-1)U(0,1), again it only gives the solution to the problem and no other examples. Kind of frustrating, but it's been a long time since I've had to mess with inequalities.
Thanks for any help,
Ryan