tangent part of rectangle (left <- middle -> right)
9
Expression 10: "s" equals negative 0.5s=−0.5
negative 1−1
00
10
Area
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11
Exact value
12
Expression 13: Start integral from "a" to "b" , end integral, left parenthesis, "f" left parenthesis, "x" , right parenthesis minus "g" left parenthesis, "x" , right parenthesis , right parenthesis "d" "x"∫bafx−gxdx
equals=
39.6 0 2 1 7 0 6 5 1 139.6021706511
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Approximations of area by adding rectangles, gets closer to exact value as N approaches infinity
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Expression 15: "A" equals "d" Start sum from "i" equals 1 to "N" , end sum, left parenthesis, "f" left parenthesis, "a" plus "d" left parenthesis, "i" plus "s" , right parenthesis , right parenthesis minus "g" left parenthesis, "a" plus "d" left parenthesis, "i" plus "s" , right parenthesis , right parenthesis , right parenthesisA=dN∑i=1fa+di+s−ga+di+s