[" In Fig.DE II AC and DF II AE.Prove that "(BF)/(BE)=(FF)/(EC)" b "(1)/(B)" is equidistant from the point "(3,6)],[" Find a relation between "x" and "y" such that the point "(x,y)" is equidistant from the point "(3,6)],[" and "(-3,4).],[" Given tan "A=(4)/(3)," find the other trigonometric ratios of the angle "A.]