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Excel QuickSkills

The COS() Function Knowledgebase

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The Cosine function in Excel is written "COS". The function accepts one argument in the form of radians and returns a value between -1 and 1.

	How to graph a SIN() function.
	How to graph a COS() function.
	How to graph a TAN() function.
	How to use the RADIANS() function

How to use the COS() function:

Note: 180 deg = p rads