Mathematics
Senior High
なぜ符号が変わるんですか?
29
ca
ab
(a−b)(b—c)(b−c)(c-a)*(c—a)(a−b)
bc
23:12
X
ca
(a-b)(b-c)
+
ab
(b-c) (c-9)
bc
((-a) (a-b)
cacc-a) + ab (a−b) + bc (b-()
(a−b) (b-c) (c-a)
c²a - a²c + a²b-ab² + b²c-bc²
(a-b) (b-c) (c-a)
(b-c) Q² - ( 6³² - (²) a + b²c-bc²
(a-b) (b-c) ((-9)
(b-c) { @²_ (btc) a + bc}
(a-b) (b-esce-a)
(a-b) (a-c)
(a-6) (c-a)
(9-0)
(c-a)
ーし
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