[积分] 101台联大 考古题

楼主: tangenttien (点)   2015-07-10 19:41:43
Find the area of the region bounded by the curves
y=sinx,y=cosx,x=0 and x=2/3.14
为什么积分里的方程式是cosx-sinx ?
不能用分段积分去算吗?一段用cosx算一段用sinx算呢?

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