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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Originally Posted by sandiego234 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 Page three I think http://www.mathhelpforum.com/math-he...-tutorial.html
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...
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