A) 9
B) 121
C) 205
D) 139
Correct Answer: B
Solution :
Let \[{{S}_{1}}={{x}^{2}}+{{y}^{2}}=9\] \[PA.PB={{(\sqrt{{{S}_{1}}})}^{2}}\] \[={{\left( \sqrt{{{(3)}^{3}}+{{(11)}^{2}}-9} \right)}^{2}}=121\]You need to login to perform this action.
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