I approached this by multiplying the whole expression by the conjugate of the numerator, , which gave me a non-zero denominator, but evaluated the limit as 0. The actual limit is .
What's the trick with this one?
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Originally Posted by Plato Thanks. Could you perhaps show me the steps you took to achieve that factorisation? Either numerator or denominator will do, I think
How are you guys getting all these fancy symbols? Do I not have enough posts yet or something?
It's using an inbuilt LaTeX compiler on this site.
For tutorials, see the LaTeX subforum.
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