Solving Rational Inequalities  TOPIC_SOLVED

Complex numbers, rational functions, logarithms, sequences and series, matrix operations, etc.

Solving Rational Inequalities

Postby Seaweed09 on Thu Aug 11, 2011 3:46 pm

Solve this inequality: (t-2)(t+3)/(t-4)>=0.
I did it using a factor table, and I got the results -3<=x<=2 and x>=4, but the answer says it should be x>4 instead, and I am not sure how they go that. Thanks in advance!
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Re: Solving Rational Inequalities  TOPIC_SOLVED

Postby little_dragon on Thu Aug 11, 2011 4:37 pm

Seaweed09 wrote:Solve this inequality: (t-2)(t+3)/(t-4)>=0.
I did it using a factor table, and I got the results -3<=x<=2 and x>=4, but the answer says it should be x>4 instead, and I am not sure how they go that. Thanks in advance!

U cant divide by 0!
if t=4 then t-4=0
:wave:
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Re: Solving Rational Inequalities

Postby Seaweed09 on Thu Aug 11, 2011 4:53 pm

Thanks!
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