A) \[x+4y=13\]
B) \[y=4x-7\]
C) \[4x+y=13\]
D) \[4y=x-7\]
Correct Answer: C
Solution :
\[T={{S}_{1}}\]is the equation of chord, hence, \[x{{x}_{1}}+y{{y}_{1}}-{{a}^{2}}=x_{1}^{2}+y_{1}^{2}-{{a}^{2}}\] \[\Rightarrow \] \[x{{x}_{1}}+y{{y}_{1}}=x_{1}^{2}+y_{1}^{2}\]You need to login to perform this action.
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