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## lirffej one year ago integral of e to the power of -x^2..help to solve this plz...

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1. hartnn

do you know about beta and gamma functions ?

2. hartnn

good try, but that is not correct. you cannot pull out variables out of integration, only constants. $$\huge \int\limits_{}^{}(\frac{ 1 }{ -2x })\frac{ -2x }{ 1 }e ^{-x ^{2}}\ne \frac{ 1 }{ -2x } \int\limits_{}^{}\frac{ -2x }{ 1 }e ^{-x ^{2}}$$

3. lirffej

thank you..but already solve it...by using taylor expansion..

4. punnus

sry dont know what was i thinking.... Again Sorry for misleading you and thanks @hartnn

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