question_answer

In a right angled triangle ABC, CD is perpendicular on the hypotenuse AB. Which of the following is correct?

A)  \[CD=\frac{AC\times BC}{A\,B}\]         

B)  \[AD=\frac{AC\times AC}{A\,B}\]

C)  \[BD=\frac{BC\times BC}{AB}\]           

D)  All of the above

E)  None of these