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f(x)=1g(x)=x^0bf(x)=x-1g(x)=x^2/x-1BE=BCCE=BCCA/2y=x2-4x5在3≤x≤5A=｛x|x2-3x2=0｝
题目详情
f(x)=1 g(x)=x^0 b f(x)=x-1 g(x)=x^2/x-1BE=BC CE=BC CA/2
y=x2-4x 5在3≤x≤5A=｛x|x2-3x 2=0｝
y=x2-4x 5在3≤x≤5A=｛x|x2-3x 2=0｝
▼优质解答
答案和解析
x^2/a^2 y^2/b^2=1中,SPF1F2=b^2*tanβ/2|x-1| |x-2|>0所以A=｛x|x2-3x 2=0｝所以x^2/a^2 y^2/b^2=1中,SPF1F2=b^2*tanβ/2
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