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January 31, 2015

January 31, 2015

Posted by **christina** on Sunday, November 24, 2013 at 11:10pm.

A = lim n → ∞ [f(x1)Δx + f(x2)Δx + . . . + f(xn)Δx]

Use this definition to find an expression for the area under the graph of f as a limit. Do not evaluate the limit.

f(x) = 7x cos(7x), 0 ≤ x ≤ π/2

- Calculus -
**Steve**, Monday, November 25, 2013 at 12:06amwell, you have the formula, so plug in

xi = 0 + k(pi/2)/n

Δx = (pi/2)/n

sum over k=0..n

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