Evaluate ( begin{vmatrix}cos &-cos &1 sin^2 &cos^2 &1 sin &-sin &1 end{vmatrix} ).

Evaluate ( begin{vmatrix}cos &-cos &1 sin^2 &cos^2 &1 sin &-si

1.	Evaluate ( begin{vmatrix}cos &-cos &1 sin^2 &cos^2 &1 sin &-sin &1 end{vmatrix} ).
A.	sin u2061 +cos<sup>2</sup> u2061
B.	-sin u2061 -cos<sup>2</sup> u2061 u2061
C.	-sin u2061 +cos<sup>2</sup> u2061 u2061
D.	sin u2061 -cos<sup>2</sup> u2061 u2061
Answer» E.

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