Why is it that Rn-Ln = (f(b)-f(a)) on [a,b]? I've tried manipulating summations but I can't seem to figure it out.
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The simplest way is to say that except for the first summand of (it is ) and the last summand of (it is ), all the other terms appear in both sums. When you subtract, you are left with .
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About LinkBacks(f(b)-f(a)) on [a,b]? I've tried manipulating summations but I can't seem to figure it out.
