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hba
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dw:1348236575098:dw

hartnn
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seperate the integrals, integration of x  integration of 1/x^2

hba
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Options
A) 0 B) 1 C) 2 D)4

hba
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dw:1348236695504:dw

hba
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@hartnn

hartnn
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what is integral of x ?

hba
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x^2/2 i guess

hartnn
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yup, what is integral of 1/x^2 ?

hba
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dw:1348236818918:dw

hba
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Integral of 1/x^2 is x

hartnn
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isn't it 1/x ?

hba
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@hartnn Right or wrong

hba
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Can you tell me how ?

hartnn
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\(\huge \int x^ndx=\frac{x^{n+1}}{n+1}+c\)
now put n=2, here.....

pitankar
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answer is B) 1

hba
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Yes @hartnn You are right my mistake

hartnn
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so now u just substitute the upper and lower limits....

hba
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dw:1348237094711:dw

hba
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I just did it Thanks Alot @hartnn :)

hartnn
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and u did it correct :)

hba
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Can you help me revise Limits In A New Post :) @hartnn

hartnn
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yup.

hba
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Ok ill just post it