I’m in CalcII now and for the life of me cannot wrap my head around integrals. Now we are using things like u-Substitution methods and solving the areas between 2 curves. I can understand how the equations work, but not why because I still cannot picture what an integral is or why it’s important.
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Your exposure to integration should have started with a derivation of the Riemann integral as the limit of Riemann sums. This approach makes the concept and its geometric meaning very clear. Did your instructor skip this step?
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