ksaimouli
  • ksaimouli
simplify
Mathematics
katieb
  • katieb
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ksaimouli
  • ksaimouli
\[\int\limits_{0}^{3}\sqrt{1+(x \sqrt{x^2+2)}^2} \]
ksaimouli
  • ksaimouli
can i cancle out the square root by the ^2 of (x^2+2)
ksaimouli
  • ksaimouli
|dw:1359411301194:dw|

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ksaimouli
  • ksaimouli
then integrate this am i right
hartnn
  • hartnn
not sure where the ^2 is ... is it square of [x sqrt (...)]
ksaimouli
  • ksaimouli
|dw:1359411399610:dw|
hartnn
  • hartnn
|dw:1359411380166:dw| so, yes, you can cancel out...
ksaimouli
  • ksaimouli
not the inside can i do outside one
hartnn
  • hartnn
|dw:1359411478889:dw|
hartnn
  • hartnn
\(\sqrt{1+ (x^2)^2+2x^2} = \sqrt{(x^2+1)^2}=x^2+1\)
hartnn
  • hartnn
what ?
ksaimouli
  • ksaimouli
never mind
hartnn
  • hartnn
you cannot cancel the outside root for ^2 of [x\sqrt...] so, did you get all steps? any doubt ?
ksaimouli
  • ksaimouli
yes i got thx
ksaimouli
  • ksaimouli
congrats u became Ambassador :-)
hartnn
  • hartnn
thanks :)

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