Mathematics
Senior High
Resolved
ピンクで囲ってあるところの計算過程教えてください
何回やっても3分の7になります、、
(5)
2
S" (4x - x²)dx - S
2
=(4x-x²)dx +
2
-
(2x² - 4x)dx
2
2
(2x²-4x)dx
= √ { (4x = x²) + (2x² - 4x) } dx
2
x3
2
-1
= L²x² dx = [ = x²³]²₁ =
3
-1
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➕➖の処理が問題でした!わかりやすい解説ありがとうございます😭😭