Hi everyone! I am posting a limit problem but need help. They say the answer is 1, but I keep getting -1 and need to understand why. Thanks! :o)

Question

anonymous · Answer

attachment

turingtest · Answer

Seems to me that the second-to-last step should still have the factor of -1, but at the end you take the absolute value so it doesn't matter.

anonymous · Answer

(-1)^(n-n-1) = (-1)^-1 = 1/-1 = -1 right? What on Earth am I missing? ugh

anonymous · Answer

that's it! :o)
absolute value! that silly little absolute value is the culprit!
Thanks so much! I missed it! :o)

turingtest · Answer

Haha it happens to the best of us :P
Welcome!

anonymous · Answer

Thanks again...now go decode the Enigma machine! :o)
Thanks @TuringTest!

turingtest · Answer

:D