integration problem

2009-08-02, 01:43

Can anyone help me with this

integral of sqrt(1+sin^2 x)

it's been bothering me for the past few days, i've tried using substitution but with little success, and i don't think partial integration does the trick

frmky · 2009-08-02, 04:35

This integral has no closed form solution. Look up the elliptic integrals.

moebius · 2009-08-02, 14:08

WolframAlpha solution:

http://www73.wolframalpha.com/input/...2Bsin%5E2+x%29

2009-08-02, 01:43	#1
sma4 5,077 Posts	integration problem Can anyone help me with this integral of sqrt(1+sin^2 x) it's been bothering me for the past few days, i've tried using substitution but with little success, and i don't think partial integration does the trick

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2009-08-02, 04:35	#2
frmky Jul 2003 So Cal 2·3⁴·13 Posts	This integral has no closed form solution. Look up the elliptic integrals.

2009-08-02, 14:08	#3
moebius Jul 2009 Germany 2×3×101 Posts	WolframAlpha solution: http://www73.wolframalpha.com/input/...2Bsin%5E2+x%29