Mean Value Theorem: for any real numbers a, b |cos a-cos b| < |a-b|

tnigsnevin

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hello! how would i go about using the Mean Value Theorem to show that for any real numbers a, b |cos a-cos b| < |a-b|
:p
:D
:confused:
 
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How would I go about using the Mean Value Theorem to show that, for any real numbers a and b, we have |cos a-cos b| < |a-b| ?
What does your book give as its statement of the Mean Value Theorem? How have you attempted to apply that information to this exercise?

Please be complete. Thank you! ;)
 
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