Mathematics
Senior High
(1)(2)の解説をお願いします。
(1)なぜ+-√2が出てくるのか
(2)なぜ、Y'がマイナスになるのか
P. 201
4.00) 1= x² - 6x + 2
y₁ = 3x²=6
22 -65
F₁₁√5²)=√(√5)²³²-6x√2 +2
-4.2+2
= 3(x²-2)
Y=OETZE X ² + √5 7(-√3)= -2√52 +6√2 +²
7 = 12
= 4√2 + 2
x
11²-√√√√***
g +0 -0 +
J 175²-45+27
最大42+217.12のとき
最小値-42+21%に「2のとき)
(2) d = (1-x) ³
5.
= 1-3x + 3x²-x³
シーズ+3x-3x+1
y² = - 3x²76x - 3
= -3(x²³²-2x+1)
=3(2-1)²
Y=0とするとx=0.1
X/M/Y/
-
✓
極値なし
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