please help! The average value of cosx on the interval [-3,5] is...? I looked in my book and asked a friend but nobody understands...the answer is supposed to be (sin3 + sin5)/8...
Follow Math Help Forum on Facebook and Google+
Originally Posted by abcocoa please help! The average value of cosx on the interval [-3,5] is...? I looked in my book and asked a friend but nobody understands...the answer is supposed to be (sin3 + sin5)/8... Then divide it by the length of interval, Correct answer thou hath.
In general (assuming the integral can be done, etc.) the average (mean) value of a function f(x) over the interval (a, b) is: You can find this under the heading "mean value theorem for integration" or something similar. -Dan
View Tag Cloud