Question

In the formula $log_a xy=log_a x+log_a y$, which of the following is true?

• A. x>0, y>0, a=1
• B. x<0, y<0, a=1
• C. a>0, y>0, x=1
• D. x>0, y>0, a ≠1

Answer 1

Answer: (D)

x>0, y>0, a ≠1

Answer 2

The correct option is (D): x>0, y>0, a ≠1.