For all real b, the integral from 0 to b of the abs(2X) dx is

A) -b *abs(b)

B) b^2

C) -b^2

D) b*abs(b)

E)none of the above

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- April 24th 2008, 08:18 PMsandiego234integral abs values
For all real b, the integral from 0 to b of the abs(2X) dx is

A) -b *abs(b)

B) b^2

C) -b^2

D) b*abs(b)

E)none of the above - April 24th 2008, 08:25 PMMathstud28
Page three I think

http://www.mathhelpforum.com/math-he...-tutorial.html - April 25th 2008, 03:05 AMMoo
Hello,

Remember : if x<0, |x|=-x and if x>0, |x|=x.

If b>0 :

since x is in [0,b], positive values.

Now, if b<0 :

since x is in [b,0], negative values.

So it's none of these...