Induction problems
0
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Can somebody show these inequalities by induction:
$2^n > 2n+1,$
where
$ n \geqslant 3.$
$ 2^{n-1}(x^n+y^n) > (x+y)^n,$
where
$ x+y>0, x \neq y$
and
$ n \geqslant 1.$
calculus
real-analysis
asked
2012-02-21
user id:20441
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1 Answers
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