The graph of the function \[\cos x\,\cos \,(x+2)-co{{s}^{2}}(x+1)\] is

1.	The graph of the function \[\cos x\,\cos \,(x+2)-co{{s}^{2}}(x+1)\] is
A.	A straight line passing through \[(0,-si{{n}^{2}}1)\] with slope 2
B.	A straight line passing through (0, 0)
C.	A parabola with vertex \[(1,-si{{n}^{2}}1)\]
D.	A straight line passing through the point \[\left( \frac{\pi }{2},-{{\sin }^{2}}1 \right)\]and parallel to the x-axis.
Answer» E.

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The graph of the function \[\cos x\,\cos \,(x+2)-co{{s}^{2}}(x+1)\] is

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