Duration: 5:21

1 views

0

The locus of a point, from where the tangents to the
\( \mathrm{P} \) rectangular hyperbola \( x^{2}-y^{2}=a^{2} \) contain an angle

W of \( 45^{\circ} \), is
(1) \( \left(x^{2}+y^{2}\right)^{2}+a^{2}\left(x^{2}-y^{2}\right)=4 a^{2} \)
(2) \( 2\left(x^{2}+y^{2}\right)^{2}+4 a^{2}\left(x^{2}-y^{2}\right)=4 a^{2} \)
(3) \( \left(x^{2}+y^{2}\right)^{2}+4 a^{2}\left(x^{2}-y^{2}\right)=4 a^{4} \)
(4) \( \left(x^{2}+y^{2}\right)^{2}+a^{2}\left(x^{2}-y^{2}\right)=a^{4} \)
📲PW App Link - https://bit.ly/YTAI_PWAP
🌐PW Website - https://www.pw.live