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Find the Area between the two functions.

http://www4a.wolframalpha.com/Calculate/MSP/MSP16151chba72gif4040fg0000686h2hea7f943994?MSPStoreType=image/gif&s=54&w=381.&h=306.&cdf=Coordinates&cdf=Tooltips [Broken]

I know the bounds are from x=[-1,1] which gives me the equation...

∫ 2/(1+x

I just can't figure out how to integrate 2/(1+x

http://www4a.wolframalpha.com/Calculate/MSP/MSP16151chba72gif4040fg0000686h2hea7f943994?MSPStoreType=image/gif&s=54&w=381.&h=306.&cdf=Coordinates&cdf=Tooltips [Broken]

I know the bounds are from x=[-1,1] which gives me the equation...

∫ 2/(1+x

^{4}) - x^{2}dxI just can't figure out how to integrate 2/(1+x

^{4}). Substitution won't work.
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