Mathematics
Senior High
(2)原点を通ると分かるのは何故ですか?
あと、4と-2はどうやって出るんですか?
48
次の不等式の表す領域を図示せよ。
4Cr1h
(1) 3x-4y-1220
(2) x+y°-4x+2yS0
(xーy>1
(x+y<16
(4)(xーy-1)(x*+y-16)<0
2
2
No.
y
(2
-1
-2
Answers
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