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¶þÖØ»ý·Ö I

¶ÔÓÚͼÖÐÇøÓò D, ÆäÖÐÂÌÏߵķ½³ÌÊÇ , le x le , ÎÒÃÇÓÐ

intint D = int leftpar2 int rightpar2 dx

(Ìî³ä¸÷ÖÖÇé¿ö.)
xrange , yrange , linewidth=2 plot green, segment ,,,, blue segment ,,,, blue segment ,,,, blue fill ,, skyblue text black,,0,giant, text black,,0,giant, linewidth 1 vline 0,, black hline ,0, black hline , , black text black,,,giant, y= parallel ,,,, 0,1, 20, grey parallel ,,,, 1,0, 20, grey arrow 0,, 0,,10,black arrow ,0, ,0 ,10,black


¶þÖØ»ý·Ö II

Éè , , , , , ÊÇƽÃæÄڵĵã, ÊǶà±ßÐΠΧ³ÉµÄÇøÓò (¼ûͼ). ¿ÉÒÔ¼ÆËã¶þÖØ»ý·Ö

intint D

Ϊ

.

ȱÉٵĻý·ÖÏÞÊÇʲô ?

xrange , yrange , linewidth=2 fpoly skyblue,,,,,,, poly blue,,,,,,, text black,,giant,A text black,,giant,B text black,,giant,C text black,,giant,D text black,,giant,E text black,,giant,F linewidth 1 vline 0,0, black hline 0,0, black parallel ,,,, 0,1, 20, grey parallel ,,,, 1,0, 20, grey arrow 0,, 0,,10,black arrow ,0, ,0 ,10,black


¶þÖØ»ý·Ö III

Éè A=(,), B=(,), C=(,), D=(,), E=(,), F=(,) ÊÇƽÃæµÄµã, ÊǶà±ßÐΠΧ³ÉµÄÇøÓò (¼ûͼ). ¿ÉÒ԰ѶþÖØ»ý·Ö

intint D

д³ÉÒÔÏÂÐÎʽ

. ÎÊȱÉٵĻý·ÖÏÞÊÇʲô ?

xrange , yrange , linewidth=2 fpoly skyblue,,,,,,, poly blue,,,,,,, text black,,giant,A text black,,giant,B text black,,giant,C text black,,giant,D text black,,giant,E text black,,giant,F linewidth 1 hline 0,0, black hline 0,0 , black parallel ,,,, 0,1, 20, grey parallel ,,,, 1,0, 20, grey arrow 0,, 0,,10,black arrow ,0, ,0 ,10,black


¶þÖØ»ý·Ö IV

Éè , , , , , ÊÇƽÃæµÄµã, ÊǶà±ßÐΠΧ³ÉµÄÇøÓò (¼ûͼ). ¿ÉÒ԰ѶþÖØ»ý·Ö

intint D

д³É¹«Ê½ 1

.

»ò¹«Ê½ 2

ÆäÖÐ leq leq leq ÊÇʵÊý. ÄãÑ¡ÔñÄÄÒ»¸ö (1 »ò 2)? »ý·ÖÏÞÊÇʲô ?
xrange , yrange , linewidth=2 fpoly skyblue,,,,,,, poly blue,,,,,,, text black,,giant,A text black,,giant,B text black,,giant,C text black,,giant,D text black,,giant,E text black,,giant,F linewidth 1 hline 0,0, black hline 0,0 , black parallel ,,,, 0,1, 20, grey parallel ,,,, 1,0, 20, grey arrow 0,, 0,,10,black arrow ,0, ,0 ,10,black
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