one more limit problem  TOPIC_SOLVED

Limits, differentiation, related rates, integration, trig integrals, etc.

one more limit problem

Postby PaulKraemer on Tue Apr 12, 2011 2:42 pm

Hi,

I am stuck on another limit problem:

lim as t->(-1) of
((4t^2 + 5t - 3)^3) / ((6t-5)^4)

I did substitution and came up with an answer of -64/14,641

The back of the book says the answer is just -64.

Did I do something wrong or is there a mistake in the back of the book.

Thanks in advance,
Paul
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  TOPIC_SOLVED

Postby stapel_eliz on Tue Apr 12, 2011 7:20 pm

PaulKraemer wrote:lim as t->(-1) of
((4t^2 + 5t - 3)^3) / ((6t-5)^4)

I did substitution and came up with an answer of -64/14,641

The back of the book says the answer is just -64.

I get your answer. I'm guessing there is a typo; namely, the denominator was omitted. :wink:
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