Mathematics
Senior High
Solved
これあってますか?
先生から聞いた答えだと、6≦x,x≧1なのですが、考えてみたら、1/2<1だから不等号が変わるのかなって。
教えてくださいm(_ _)m
(3) 2 (¹) *² = ( 128 ) *-
(1/2)x
X-I
(+)'. ( + ) ** > {(+)"} *-
(1/2)x2=1≧ (12/2) 7x7.
X²-1 ≤ 7x-7
X²³-7x+6=0
(X-6) (x-1) ≤0
X = 1₁6
|≤x≤6
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ですよね。ありがとうございますm(_ _)m