亲爱的网友：f(x)=log9(x8-α/x)在[1,正∞）0(BCCAAB)/2A当a=3时A×B＝,∴(√a√b)2;≥0∴ab-2√ab≥0

Question

亲爱的网友：f(x)=log9(x 8-α/x)在[1,正∞）0 (BC CA AB)/2
A当a=3时A×B＝,∴(√a √b) 2;≥0 ∴a b-2√ab≥0

Answer 1

AD BE CF=(AB BC CA) (BC/2 CA/2 AB/2)x| |y-2/1|=0相对Bx2^2-ax2)/(x1^2-ax1)>1 相对AD BE CF=(AB BC CA) (BC/2 CA/2 AB/2)