The expression \[\frac{\cos 6x+6\cos 4x+15\cos 2x+10}{\cos 5x+5\cos 3x+10\cos x}\] is equal to

The expression \[\frac{\cos 6x+6\cos 4x+15\cos 2x+10}{\cos 5x+5\cos 3x

1.	The expression \[\frac{\cos 6x+6\cos 4x+15\cos 2x+10}{\cos 5x+5\cos 3x+10\cos x}\] is equal to
A.	\[\cos 2x\]
B.	\[2\cos x\]
C.	\[{{\cos }^{2}}x\]
D.	\[1+\cos x\]
Answer» C. \[{{\cos }^{2}}x\]

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The expression \[\frac{\cos 6x+6\cos 4x+15\cos 2x+10}{\cos 5x+5\cos 3x+10\cos x}\] is equal to

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