Use the Definition to find an expression for the area under the graph of f as a limit. Do not evaluate the limit.f(x) = x2 +
1 + 2x
, 4 ≤ x ≤ 6
lim n → ∞
i = 1
If you really want our help then learn to post using LaTeX.
I personally have no interest in trying to guess at what a question really means.
What you posted above is total gibberish.
Please learn to use LaTeX.