question_answer

Find the equation of that diameter which bisects the chord \[7x+\text{ }y-20=0\] of the  hyperbola \[\frac{{{x}^{2}}}{3}-\frac{{{y}^{2}}}{7}=7\]

A)  \[\frac{1}{3}x-y=0\]    

B)  \[-\frac{1}{3}x=y\]

C)  \[y+3x=0\]    

D)  None of these