Jika y>x>0,{ )^(9) log (y^(2)-x^(2))=a dan { )^(x+y) log

Jika y>x>0,{ )^(9) log (y^(2)-x^(2))=a dan { )^(x+y) log 3=b , maka { )^(27) log (y-x)=... A. (3 a b+1)/(2 b) D. (2 a b+1)/(3 a) B. (3 a b-1)/(2 b) E. (2 a b-1)/(2 a) C. (2 a b-1)/(3 b)