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Jan
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comment Proving that a sequence is bounded without knowing the sequence explicitly
What is the starting value?
Jan
21
revised Diophantine equation with $gcd = 1$
edited tags
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Jan
6
comment Computing limits which involve square roots, such as $\sqrt{n^2+n}-n$
@Normal: I suggest you read this: meta.math.stackexchange.com/questions/1868/… and the linked question by Bill D. Special case vs general case is a common objection to such closings, but such closings [i.e. closed as minor variations] are fine IMO. It does not have to be an exact dupe.
Jan
4
comment Computing limits which involve square roots, such as $\sqrt{n^2+n}-n$
Please consider browsing the faq tag before posting a question. [To anyone who comes across this comment, I know this question is old]
Jan
4
comment Computing limits which involve square roots, such as $\sqrt{n^2+n}-n$
Possible duplicate of Limits: How to evaluate $\lim\limits_{x\rightarrow \infty}\sqrt[n]{x^{n}+a_{n-1}x^{n-1}+\cdots+a_{0}}-x$
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Dec
18
reviewed Approve Is $a^{\ln b} = b^{\ln a}$?
Dec
18
comment Is $a^{\ln b} = b^{\ln a}$?
Take log on both sides and compare.
Dec
18
comment Lottery Math (different combinations)
Look at en.wikipedia.org/wiki/Steiner_system.
Dec
14
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13
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Dec
7
comment Proving the positivity of a twice-differentiable real-valued function
@Eklavya: Intermediate value theorem.
Nov
28
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