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January 27, 2015

January 27, 2015

Posted by **John** on Sunday, December 19, 2010 at 3:41pm.

- maths -
**bobpursley**, Sunday, December 19, 2010 at 4:03pmy=f1(x)=1/x

y2=1/3x

area= int (1/x - 1/3x)dx from x=3 to 4

area= lnx -1/3 lnx frm 3,4

area= 2/3 (ln4-ln3)

check my work

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