The average value of cos x on the interval [–3, 5] is

A) (sin 5 – sin 3)/8

B) (sin 5 – sin 3)/2

C) (sin 3 – sin 5)/2

D) (sin 3 + sin 5)/2

E) (sin 3 + sin 5)/8

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- Feb 22nd 2006, 12:42 PMfrozenflamesCalculus
The average value of cos x on the interval [–3, 5] is

A) (sin 5 – sin 3)/8

B) (sin 5 – sin 3)/2

C) (sin 3 – sin 5)/2

D) (sin 3 + sin 5)/2

E) (sin 3 + sin 5)/8 - Feb 22nd 2006, 02:16 PMThePerfectHackerQuote:

Originally Posted by**frozenflames**

Which is by the fundamental theorem,

Now divide by the length of the interval which is,

Thus, the answer is,