问题标题:
高分求用Maple做一道微积分的题!Considerthefollowingfunctionontheinterval[0, π/2].f (x)=√ 2x  cos8(2x)(a用中线方法求方程下方区域)Approximatetheareaunderf (x)onthegivenint
问题描述:
高分求用Maple做一道微积分的题!
Considerthefollowingfunctionontheinterval[0, π/2].
f (x)=√ 2x cos8(2x)
(a用中线方法求方程下方区域)Approximatetheareaunderf (x)onthegivenintervalusingmidpoints(中点)withn=10.
(b求定积分)Computethedefiniteintegraloff (x)ontheinterval[0, π/2].
(c求绝对误差)Findtheabsolutevalueoftheerrorinvolvedinapproximatingtheareaunderf (x)onthegivenintervalusingaRiemmansumwithmidpointsandn=10.
(d)Usingtrialanderror,determinethesmallestnumbernofsubintervalssuchthattheabsoluteerrorofthemidpointRiemannsumwithrespecttotheexactvalueoftheareaislessthan0.0005.
方程式根号下2x乘以(cos(2x))^8
钱志明回答:
要使绝对误差小于0.0005,从以上试算结果可以看出,n的最小值等于5
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