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想知道:y=(x2)/(3x-1)AB=AC=3COS=1/9loga[(x2^2-ax2)/(x1^2-ax1)]>0ADBECF=(ABBCCA)(BC/2CA/2AB/2)
题目详情
想知道:y=(x 2)/(3x-1)AB=AC=3COS=1/9
loga[(x2^2-ax2)/(x1^2-ax1)]>0AD BE CF=(AB BC CA) (BC/2 CA/2 AB/2)
loga[(x2^2-ax2)/(x1^2-ax1)]>0AD BE CF=(AB BC CA) (BC/2 CA/2 AB/2)
▼优质解答
答案和解析
∠DAB=60°,AD=AA1B我们讨论的范围是x<0\假设1n(M N)=1nM 1nM假设∠DAB=60°,AD=AA1
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