Quote:
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Originally Posted by AngelicVampire
Why is it wrong? As X tends to 8 the sum becomes undefined (1/0), however as it approaches it for values say 7.9999 the value becomes very large (1/0.0001 = 10,000), so it does approach infinity. Of course a sideways 5 is wrong though...  |
it's wrong because it approaches both infinity and negative infinity
so the limit actually does not exist.....
unless the limit says x -> 8+ then it would be infinity
but it doesnt have the + after 8, so it approaches 8 from both sides
yes, from the right, the limit does approach infinity
but when it comes from the left, it approaches negative infinity
you can make it right by squaring the denominator of the equation, then the limit would approach infinity
so that's why it's wrong
but good joke
