The angle between the lines represented by the equation \[{{x}^{2}}-2p

1.	The angle between the lines represented by the equation \[{{x}^{2}}-2pxy+{{y}^{2}}=0\], is
A.	\[{{\sec }^{-1}}p\]
B.	\[{{\cos }^{-1}}p\]
C.	\[{{\tan }^{-1}}p\]
D.	None of these
Answer» B. \[{{\cos }^{-1}}p\]

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The angle between the lines represented by the equation \[{{x}^{2}}-2pxy+{{y}^{2}}=0\], is

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