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Mathematics
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space monkeys
  • Member for 9 years, 6 months
  • Last seen more than 8 years ago
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6
Prove by induction that $n^3 + 11n$ is divisible by $6$ for every positive integer $n$.
Mar 24, 2015
1
Explanation of additive identity and additive inverse in proving of vector space.
Jan 18, 2015
1
Matrices Further Mathematics A-Level
Jan 20, 2015
1
Use induction to prove that sum of the first $2n$ terms of the series $1^2-3^2+5^2-7^2+…$ is $-8n^2$.
Jan 28, 2015
0
Mathematical induction
Jan 14, 2015
0
Mathematical induction
Jan 14, 2015
0
Mathematical induction (prove divisibility)
Jan 15, 2015
0
Showing $1 + 4\cos{2\theta} + 6 \cos{4\theta} +4\cos{6\theta}+ \cos {8\theta} =16\cos{4\theta} \cos^4 \theta$.
Jan 15, 2015
0
Show that $1+z=2\cos\frac 12\theta(\cos\frac 12 \theta + i\sin \frac 12 \theta)$
Jan 22, 2015
0
$y=\frac{a}{n^2-p^2}(\sin\,pt -\frac{p}{n}\,\sin\,nt)$ Show that, as $p$ tends to $n$, $y$ tends to $\frac{a}{2n}(\frac{1}{n}\,\sin\,nt-t\,\cos\,nt)$
Mar 2, 2015