Mathematics
Senior High
Solved
これどこで計算ミスしてますか?
答えは1/2です。
7. 次の曲線とx軸で囲まれた2つの部分の面積の和Sを求めよ。 [6点]
4
y=x3-3x2+2x
=x(ぴー3x+2)
=x(x-1)(x-2)
y
S-) (x^-^)+ ), ( - (*-*)} de
S=)(ズーラが+2x)+
+
t
x4
4
-9
= (½-1 + 1) - 0 + ((-448-4)-(-4+1 −1)}
(1)―0+(-4+8
=1+(8+1)=1/4+(+)
34 17
4
2
t
2
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