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Arrange the steps in the correct order to express cos 3 x in terms of cos x . cos ( 2 x ) cos ( x ) − sin ( 2 x ) sin ( x ) [ 1 − 2 sin 2 ( x ) ] cos ( x ) − [ 2 sin ( x ) cos ( x ) ] sin ( x ) cos ( x ) − 4 sin 2 ( x ) cos ( x ) 4 cos 3 ( x ) − 3 cos ( x ) cos ( 2 x + x ) cos ( x ) { 1 − 4 [ 1 − cos 2 ( x ) ] } cos ( x ) − 2 sin 2 ( x ) cos ( x ) − 2 sin 2 ( x ) cos ( x ) cos ( x ) [ 1 − 4 sin 2 ( x ) ] cos ( x ) [ - 3 + 4 cos 2 ( x ) ]
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