先求由y=x^2,y=0和x=1所围成的图形面积：```````1（积分上限）S1 =∫x^2 dx = 1/3```````0（积分下限）求由y=t,y=0,x=0,x=1所围成的长方形的面积：S2 =t求S1和S2图形相交的图形的面积：````````t^(1/2)（积分上限）S...