Asked by Joshua

lim t-> -infinity for sqrt(4t^2-5t-1)/(2t-3)

I get infinity or -infinity, but the real answer is -1. How does this occur?

Answers

Answered by Steve
as x gets large, higher powers dominate, so

√(4t^2-5t-1) -> √(4t^2) = |2t|
(2t-3) -> 2t

make sense?
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