17 (5.5)=(+2° ✓ 109/093 = 10x . 65,5): 10 15.過點P(24,3)且與直線L:ㄨ/y±0垂直的直線,分別交函數 f(x)=2*與g(x)=logzx 兩圖形於點A、B,則PA+PB=? Y = - X+b of 1) ch. (0,1) (1,0) 3=4+b if (110) b=-1 B (aib) SAVE: 7√2 y=-x- 16.a>b>0,且ab=1000,若f(x)=(log *) (log ㄓㄨㄥ )之最小值為 - ,則數對(a,b)=? 4 a b -(ogx-loga) (logx-logb) = (ogx) + (logalogb) - logxloga-logxl-gb 参考書票:(100,10)