For all values of A, B, C and P, Q, R the value of the determinant\[{{(x+a)}^{3}}\left| \begin{matrix} \cos (A-P) & \cos (A-Q) & \cos (A-R) \\ \cos (B-P) & \cos (B-Q) & \cos (B-R) \\ \cos (C-P) & \cos (C-Q) & \cos (C-R) \\ \end{matrix} \right|\] is

For all values of A, B, C and P, Q, R the value of the determinant\[{{

1.	For all values of A, B, C and P, Q, R the value of the determinant\[{{(x+a)}^{3}}\left\| \begin{matrix} \cos (A-P) & \cos (A-Q) & \cos (A-R) \\ \cos (B-P) & \cos (B-Q) & \cos (B-R) \\ \cos (C-P) & \cos (C-Q) & \cos (C-R) \\ \end{matrix} \right\|\] is
A.	\[1\]
B.	\[0\]
C.	\[2\]
D.	None of these
Answer» C. \[2\]

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For all values of A, B, C and P, Q, R the value of the determinant\[{{(x+a)}^{3}}\left| \begin{matrix} \cos (A-P) & \cos (A-Q) & \cos (A-R) \\ \cos (B-P) & \cos (B-Q) & \cos (B-R) \\ \cos (C-P) & \cos (C-Q) & \cos (C-R) \\ \end{matrix} \right|\] is

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