Expression 9: "f" left parenthesis, "x" , right parenthesis equals StartFraction, "x" to the 4th power Over 625 , EndFraction negative StartFraction, 3 "x" squared Over 25 , EndFraction positive 1fx=x4625−3x225+1
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Expression 10: left bracket, "a" less than or equal to "x" less than or equal to "b" , right bracket Cannot use an inequality here.a≤x≤b
Method = 0 for left endpoint
Method = 0.5 for midpoint
Method = 1 for right endpoint
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Visual Representation Construction
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"a" equals negative 5a=−5
"b" equals 4b=4
Statistics
"L" Subscript, "n" , Baseline equals Delta "x" Start sum from "k" equals 0 to "n" minus 1, end sum, "f" left parenthesis, "x" Subscript, "k" , Baseline , right parenthesis equals 2.6 8 4Ln=Δxn−1∑k=0fxk=2.684
Start integral from "a" to "b" , end integral, "f" left parenthesis, "x" , right parenthesis "d" "x" equals 2.7 6 8∫bafxdx=2.768