Hi

I think I understand the Mean Value Theorem but the question is "show that cos x >+ 1-x if x>= 0"

I just don't know where to start or what to do without 2 numbers.

Please guide me.

Thanks

a frustrated Calculus beginner

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- March 1st 2009, 08:59 AMcalcbegMean Value Theorem
Hi

I think I understand the Mean Value Theorem but the question is "show that cos x >+ 1-x if x>= 0"

I just don't know where to start or what to do without 2 numbers.

Please guide me.

Thanks

a frustrated Calculus beginner - March 1st 2009, 09:31 AMNacho
Using derivatives:

You consider the hence the function is crescente, if I mean: - March 1st 2009, 10:55 AMKrizalid
The statement is wrong, of course; at we do have equality, whereat holds for all