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March 26, 2026, 05:09:39 pm
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Author Topic: need help with this question  (Read 567 times)  Share 

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Teen

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need help with this question
« on: July 18, 2012, 11:27:23 pm »
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anti derivative following :    1/(x^2+2x+2). can u pls show me the working out...
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2011-biology
2012-Aiming  for ATAR of 90+

Jenny_2108

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Re: need help with this question
« Reply #1 on: July 18, 2012, 11:32:02 pm »
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Quote from: Teen on July 18, 2012, 11:27:23 pm
anti derivative following :    1/(x^2+2x+2). can u pls show me the working out...

x^2+2x+2= 1+ (x+1)^2
Let u=x+1 => anti derivative: 1/1+u^2= tan^-1 (u)+c = tan^-1 (x+1)+c

P/S: I dunno how to type the Maths code and too lazy to do that
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Teen

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Re: need help with this question
« Reply #2 on: July 18, 2012, 11:38:29 pm »
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Quote from: Teen on July 18, 2012, 11:27:23 pm
anti derivative following :    1/(x^2+2x+2). can u pls show me the working out...

thanks for the help:)
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2011-biology
2012-Aiming  for ATAR of 90+
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